[HN Gopher] What chords do you need?
       ___________________________________________________________________
        
       What chords do you need?
        
       Author : janvdberg
       Score  : 263 points
       Date   : 2022-04-21 13:56 UTC (9 hours ago)
        
 (HTM) web link (www.jefftk.com)
 (TXT) w3m dump (www.jefftk.com)
        
       | evo_9 wrote:
       | Love this stuff, great read.
       | 
       | Also if you have not seen Hook Theory yet, worth checking out:
       | https://www.hooktheory.com/about
        
       | h2odragon wrote:
       | Cheech & Chong: "and I only know 4 chords!"
       | 
       | Its amazing how sparse a representation of a song can be
       | recognizable (and enjoyable!) The mapping of musical meaning is
       | due for a new look; the way we talk and write about sound needs
       | to be rationalized before we can progress further in
       | understanding why and how it works.
        
         | moron4hire wrote:
         | I don't know. After watching a lot of Adam Neely videos on
         | YouTube, I get the impression that music theory has an
         | incredibly rich language to describe music and does have a good
         | understanding of why certain songs sound good, why certain
         | arrangements sound better than others, especially regarding
         | specific emotional cues they are trying to convey. That's one
         | of the things I love about his videos, he does an excellent job
         | of translating that language to a lay audience. But as with
         | anything, full mastery of the field takes significant,
         | prolonged effort, not in any small part due to competition
         | driving the bar ever higher and higher.
        
           | TaupeRanger wrote:
           | Most of Neely's stuff is just wrong or misleading. I once
           | tried to watch his video about why minor chords sound "sad"
           | and major chords sound "happy" and it was just laughable how
           | unsupported his claims were.
        
             | rizzaxc wrote:
             | citations needed
        
             | moron4hire wrote:
             | I have never heard such a complaint about his videos. Most?
             | There are enough musicians in the world, on YouTube, and in
             | my family that they would have called it out. I call
             | shenanigans and say it is you, sir, who are wrong or
             | misleading
        
               | h2odragon wrote:
               | > it is you, sir, who are wrong or misleading
               | 
               | Or your opinions just differ.
               | 
               | The meaning of music is in the listener. what you hear
               | may not be what others do.
               | 
               | even the Brown Note doesn't hit everyone.
        
       | irrational wrote:
       | >they are each three major chords using the first, fourth, and
       | fifth notes of the major scale
       | 
       | I have no idea what any of this means (what is a chord? what is a
       | major chord? what is a note? what is a first/fourth/fifth note?
       | is there a 65th note? what is a scale? what is a major scale?
       | what does it mean that a note is of a scale? what does it mean
       | that a chord uses a note? is there a difference between a chord
       | using a note of a scale and not of a scale?), but it implies to
       | me that music is as complex a subject as physics.
        
         | jefftk wrote:
         | A note is something that gives the impression of being a single
         | pitch (frequency). For example, what you get when you play a
         | single key on the piano, or pluck a string on a stringed
         | instrument. Many instruments can only play one note at a time:
         | trumpet, flute, saxophone.
         | 
         | The standard notes used in Western music and discussed in this
         | piece differ in pitch by a factor of the 12th root of 2
         | (~1.06x). This means that if you go up twelve notes (which we
         | call "half steps", confusingly) your pitch doubles. Two notes
         | that differ by a factor of two are said to be an "octave"
         | apart, and sound almost like the same note.
         | 
         | A scale is a series of notes, and a "major scale" is a specific
         | series where you go up by two notes, two notes, one note, two
         | notes, two notes, two notes, and then one note. This gives you
         | seven different notes in your octave. We can call these notes
         | the "first", "second", etc notes of the major scale. We
         | typically don't talk about "65th" notes because they would be
         | way too high.
         | 
         | A chord is multiple notes played at the same time. The chords I
         | am talking about this post are "triads", which means they are
         | three simultaneous notes
         | 
         | A major chord is notes one, three, and five of a major scale. A
         | minor chord is the same, but the middle chord (three) is moved
         | down one note ("flat" or "minor").
        
           | psyc wrote:
           | Wow. I thought about answering and decided it was too much to
           | cover. Well done, teacher! They say your ability to explain
           | to a beginner without misleading is a good measure of how
           | well you understand a thing.
        
           | irrational wrote:
           | Thanks. That helps somewhat, though it is still crazy
           | complex. But, why is the major scale 2212221? Is there a
           | 1212122 scale (end every other possible combination)?
        
             | drivers99 wrote:
             | > Is there a 1212122 scale (end every other possible
             | combination)?
             | 
             | The steps have to add up to 12 to end up on the same
             | octave. I'm not sure about every possible combination but
             | there are other scales called "modes" which are rotations
             | of that pattern (which can be derived from the white keys
             | on the piano, just starting one of the 7 different notes;
             | whether something is a 2 or a 1 depends on whether there is
             | a black key between the white keys). The different scales
             | derived from that are:
             | 
             | 2 2 1 2 2 2 1
             | 
             | 2 1 2 2 2 1 2
             | 
             | 1 2 2 2 1 2 2
             | 
             | 2 2 2 1 2 2 1
             | 
             | 2 2 1 2 2 1 2
             | 
             | 2 1 2 2 1 2 2
             | 
             | 1 2 2 1 2 2 2
             | 
             | The first pattern is a typical Major (associated with happy
             | songs) scale. The sixth one is a standard Minor scale
             | (associated with less happy songs). The third one is called
             | Phrygian and has a dark/exotic feel that works well in
             | metal ( https://www.youtube.com/watch?v=-DzGlzdbkDI )
             | 
             | (My comment based on referring to
             | https://learningmusic.ableton.com/advanced-
             | topics/modes.html )
             | 
             | You could have other scales such as:
             | 
             | 1 1 1 1 1 1 1 1 1 1 1 1 (chromatic scale, i.e. every white
             | and black key in order
             | https://www.youtube.com/watch?v=xUpKPaKhsEc )
        
             | jefftk wrote:
             | A 1212122 scale doesn't add to 12, and so would not work
             | very well. When you play through a scale, low to high, you
             | generally want to end up back where you started but up an
             | octave.
             | 
             | The main other combinations you see are the same 2212221
             | pattern, but starting on a different note. For example, if
             | you start on the sixth note, this permutes to 2122122 which
             | we call the (natural) minor scale. We call each of these
             | permutations a "mode".
        
             | felix318 wrote:
             | Technically any sequence of notes within the octave is a
             | scale, including the chromatic scale (111111111111). The
             | French composer Olivier Messiaen did some investigation
             | into how many scales can be built, I think the number is a
             | bit over 800. Of course most scales sound weird to
             | unaccostumed ears.
        
               | bazeblackwood wrote:
               | And that's just within 12 tone systems! Scales don't have
               | to repeat over the octave, see Wendy Carlos' work in this
               | area.
        
         | TremendousJudge wrote:
         | Music theory can get pretty wild, yeah. The main difference to
         | me when comparing it to (for example) physics theory is that
         | it's usually an aesthetic pursuit. As in, studying physics has
         | the end goal of understanding how the universe works, but
         | theorizing about music involves the aesthetic value of the
         | sound -- why and how something "works" (or doesn't), what
         | feelings or emotions are evoked by certain types of sound, and
         | how to apply this to composing new music, or understanding
         | existing music.
        
       | photochemsyn wrote:
       | I'd like to see this thinking applied to John Coltrane's Giant
       | Steps:
       | 
       | https://perfectauthenticcadence.blogspot.com/2016/01/analyzi...
       | 
       | > "By creating this system of cyclical patterns, Coltrane changed
       | the language of jazz and broke the mold of ordinary jazz harmonic
       | progressions in jazz history. (Wernick 23). The use of "Coltrane
       | changes" is still used by jazz composers today, and has become
       | one of the most influential jazz compositional techniques of the
       | last half-century."
        
         | tarentel wrote:
         | He ignores songs with key changes in this analysis but he also
         | does a lot of simplifications. If we simplify this song it's
         | mostly just a ii-V-I across 3 different keys. It is the most
         | common chord progression in jazz music.
        
       | acjohnson55 wrote:
       | You see this in the design of the typical diatonic harmonica.
       | That's why it's such a versatile instrument, despite its
       | limitations (e.g. missing accidentals within its key, only able
       | to play blow or draw notes within a given chord).
        
       | analog31 wrote:
       | There's also a huge pile of chord charts published online for the
       | jazz standards and the Great American Songbook, that would be
       | interesting to analyze.
        
         | jefftk wrote:
         | Are any of these machine readable? As long as I don't have to
         | transcribe them by hand I would enjoy looking at them!
        
           | analog31 wrote:
           | I've kind of lost touch. My "fake books" were all hand
           | written and photocopied.
           | 
           | Even the better players were becoming so dependent on them,
           | that it was detracting from the music, so I went cold turkey
           | and learned the tunes.
           | 
           | An app called "iRealPro" has chord changes in a strange
           | format, and somebody once created a Python library to decode
           | it.
           | 
           | There was once a book called "pocket changes" with just chord
           | changes, and I think it was converted to text format, but
           | can't find it anywhere online. The changes are an outgrowth
           | of a quirk in the copyright law, where the melody and words
           | can be copyrighted, but not the harmony.
           | 
           | Wish I could be of more help.
        
           | zwegner wrote:
           | Quite a few jazz tunes have chords here:
           | http://songtrellis.com/changesPage
           | 
           | Some of the chord charts are machine readable (available as
           | just plain text), while others are images, but looks like
           | all/almost all of them are available as MIDI as well.
        
         | tarentel wrote:
         | Probably instead of I-IV-V being the most common you would see
         | the ii-V-I chords being the most common.
        
         | edelans wrote:
         | Can't resist mentioning that old joke : "A pop guitarist plays
         | five chords for ten thousand people, a jazz guitarist plays ten
         | thousand chords for five people"
        
       | stevenalowe wrote:
       | I like fat chords, I cannot lie.
        
       | tjr wrote:
       | Looks about right, but I'll still be keeping my 13(#11) chords.
       | 
       | [EDIT: Meant as a joke, but it was not a good joke, as the author
       | explicitly addressed upper extensions and their irrelevance to
       | the point of the article.]
        
         | np_tedious wrote:
         | He was only talking root and major vs minor. No mention of
         | upper extensions of any kind. So V7 is still V, V13b9 is still
         | V
        
           | tjr wrote:
           | You're correct; I withdraw my remark.
        
       | fallingfrog wrote:
       | Interesting how rare the minor iv chord is. Offhand I can think
       | of only 2: Creep by Radiohead and Space Oddity by David Bowie.
        
         | willismichael wrote:
         | It's also used in Hotel California.
         | 
         | Maybe it doesn't show up much in pop/rock/country, but it's not
         | uncommon in jazz.
        
       | travisgriggs wrote:
       | Completely tangential to the actual content of this blog, I
       | really (really really really) appreciate the look. Simple dark
       | text on light background. Obvious hyperlinks. Charts and tables
       | that tell the story without distracting. Effective minimalism.
       | 
       | I wish more of the internet looked like this.
        
         | spicymaki wrote:
         | Yes good point. It takes me back to when content really
         | mattered.
        
           | ryanmcbride wrote:
           | I make a concerted effort for every personal project I have
           | to be laid out like this, fast loading, searchable, nothing
           | in the way.
           | 
           | And that's why I do it that way. No other reason. Definitely
           | not because I can't do modern design to save my life...
        
         | cactus2093 wrote:
         | Interesting, I really disagree. I do agree the page is
         | refreshing compared to a lot of the internet these days, just
         | because it has no ads and no glitchy, laggy SPA animations or
         | slow loading times.
         | 
         | But it's pretty extreme to pretend that none of basic design
         | practices adopted over the past 30 years have any merit
         | whatsoever. This design is not good. The black text on white is
         | too much contrast. The default browser text of Times New Roman
         | is less readable than more modern sans serif fonts (this is
         | arguably a problem with Chrome's default value though, not just
         | this site). The graph titles are not text but rendered into the
         | images, and the images have no alt text to help with
         | accessibility. The double solid border on cell boundaries in
         | the tables looks crazy and does distract from the content. The
         | page content is much narrower than it should be on desktop, it
         | could use an adaptive width. There is no dark mode to make the
         | page easier on your eyes in low light.
         | 
         | The design here on HN is a much better example to strive for,
         | it has a similar minimalist aesthetic but addresses most of
         | these issues.
         | 
         | I wish more of the internet _behaved_ like this, but I do not
         | need it to look like this.
        
           | hackernewds wrote:
           | Agree I'd hate for the internet to look like a corporate
           | Google Doc. An interactive New York Times article is very
           | pleasing to read (minus all the ads)
        
           | rhn_mk1 wrote:
           | The dark mode is built into your browser if you set the
           | browser embedded style to dark.
           | 
           | It integrates flawlessly for me.
        
             | cactus2093 wrote:
             | Huh, it doesn't work for me with MacOS system settings set
             | to Dark Mode, even though that does usually work in the
             | browser for sites like google that support dark mode.
        
               | rhn_mk1 wrote:
               | I think browsers started dropping the ability to use
               | system colors a few years ago. Presumably because some
               | web sites make assumptions about colors and become
               | unusable (like white text on white background). But not
               | this site!
        
         | wintermutestwin wrote:
         | But that tiny column width is horrible and totally unfriendly
         | to those of us with oldster eyes who magnify every web page
         | with their tiny fonts.
        
         | em3rgent0rdr wrote:
         | I prefer it too, and is like the very early internet, which was
         | only missing CSS to set the main text in column with a maximum
         | width.
        
       | sharkbot wrote:
       | By coincidence, Teenage Engineering is on the front page at the
       | same time as this article. I've enjoyed playing and creating
       | music on their pocket operator devices, specifically the PO-20
       | chip tune one. The sound palette is a bit limited, but the chord
       | opens up a lot of opportunity for creativity, especially with a
       | little bit of music theory to help.
        
       | codazoda wrote:
       | This is super interesting, especially his work on those foot
       | pedals. I like to make music but only just know a tiny bit about
       | playing. Maybe having foot pedals would help. I also created a
       | random chord generator that you can run in your browser to get
       | ideas for chord progressions.
       | 
       | https://chords.joeldare.com
        
         | Rodeoclash wrote:
         | That was pretty fun. I wonder if making it so you can play the
         | chords using the keyboard would work? Also, I changed it to Dm
         | and the chord selection was, odd.
         | 
         | Still, I liked it. I compose a lot of songs in Dm but do get
         | stuck in the same old chords.
        
       | bambax wrote:
       | The obligatory video is of course "Four Chords" by Axis of
       | Awesome:
       | 
       | https://www.youtube.com/watch?v=5pidokakU4I
       | 
       | Rick Beato has kind of the opposite video about "the most complex
       | song ever":
       | 
       | https://www.youtube.com/watch?v=ZnRxTW8GxT8
       | 
       | The song in question is Never Gonna Let You Go by Sergio Mendes;
       | plenty of videos exist of it; here's one live:
       | 
       | https://www.youtube.com/watch?v=fOPh3bTglak
        
         | LordDragonfang wrote:
         | I'm a big fan of the Pachelbel Rant as a sibling to the Axis of
         | Awesome video
         | 
         | https://www.youtube.com/watch?v=uxC1fPE1QEE
        
         | pohl wrote:
         | It's worth noting that the "4 chords of pop" observation
         | reference in TFA (which is about how few chords you need to
         | learn to be able to make songs) is a bit different than the
         | 4-chord cycle progressions discussed in that Axis of Awesome
         | video (which is about specifically using 4-chord-long
         | progressions that repeat in a cycle) -- but it is still a fun
         | thing.
         | 
         | If you do enjoy that, be sure to check out Patricia Taxxon's
         | video on the subject, which is a very worthwhile analysis of
         | that idea. It might be my favorite youtube video in the music
         | theory genre.
         | 
         | https://www.youtube.com/watch?v=K-XSTSnqXxo
        
           | not2b wrote:
           | The interesting thing about the Axis of Awesome four chords
           | is that they are the same four chords that were in the
           | stereotypical 1950s/early 60s pop song (Heart and Soul,
           | Teenager in Love, Up on the Roof) but the order has changed.
           | In the key of C the 50s version was C, A minor, F, G (or
           | sometimes G7 instead), and in the Axis of Awesome / Adele
           | version it's C, G, A minor, F. Of course Axis of Awesome
           | cheats a little bit because they play the 4-chord parts of
           | those 30-odd songs (though in fairness those tend to be the
           | best known parts).
        
             | coliveira wrote:
             | Yes, and this is the crucial difference that make new songs
             | sound "modern". The Beatles were one of the first to use
             | the 1,5,6,4 sequence (Let it be). Since then the 1,6,4,5
             | sequence has consistently lost ground, while 1,5,6,4 sounds
             | modern. The chords are still the same.
        
           | uhoh-itsmaciek wrote:
           | _Three_ chords and the truth. Usually attributed to Harlan
           | Howard [1], an early country music songwriter. A lot of early
           | country music sticks to just I, IV, and V.
           | 
           | [1]: (PDF) https://countrymusichalloffame.org/content/uploads
           | /2019/05/W...
        
             | pohl wrote:
             | Thank you, fixed. That phrase flew right out of my fingers
             | carelessly.
        
               | uhoh-itsmaciek wrote:
               | No problem. In country and bluegrass jamming circles,
               | there's definitely a faction that prefers simpler songs
               | with fewer chords (true to Howard's quote), so I was
               | amused to see his words distorted. Thanks for fixing it.
        
           | bambax wrote:
           | > _Axis of Awesome video (which is about specifically using
           | 4-chord-long progressions that repeat in a cycle)_
           | 
           | Well yes the Axis of Awesome thesis is a bit disingenuous and
           | the critique at the beginning of Patricia Taxxon's video is
           | justified; just because the chords are the same doesn't mean
           | the songs are the same! And the analogy is quite true that in
           | visual arts all colors can be formed from the three primary
           | colors.
           | 
           | Actually, I'm currently trying to make songs based on this
           | simple 1465 progression, in that order; here are my first two
           | attempts (the titles are a hint ;-)
           | 
           | Alp 1465 https://open.spotify.com/track/5TxVfIf9JUAhCEL3O5cWX
           | T?si=86c...
           | 
           | Bet 1465 https://open.spotify.com/track/2ghJN1EtQwXAZZj91B5yq
           | s?si=f16...
        
         | tallies wrote:
         | I find it hilarious that he concludes the Sergio Mendes
         | recording is "the most complex pop song ever" rather than the
         | obvious takeaway that when a song is simple enough, most of the
         | specific notes being played aren't important. You could easily
         | rearrange the song to be easier to play on guitar without
         | losing "the song" (unless you're a music theorist and the
         | ornamentation is "the song")
        
           | pythko wrote:
           | I don't think that's the obvious takeaway. The specific chord
           | voicings are complicated, sure, but the complexity he's
           | talking about are the key changes and unexpected tonal
           | choices. You can't remove those without fundamentally
           | changing the feeling of the song.
           | 
           | When I was learning the guitar, I frequently would skip
           | passing chords and simplify voicings I didn't know how to
           | play. As a result, my covers were pretty boring and lacking
           | the impact of the originals. That's fine for beginners, but a
           | pro musician is going to take pride in either faithfully
           | recreating a cover or intentionally putting their own
           | stylistic spin on it, not just skipping over stuff that's
           | hard.
        
             | tallies wrote:
             | How complex is a song that can be played on entirely
             | different instruments without re-interpretation?
             | 
             | When I think of complexity I think of unreconcilable
             | elements that force the transposer to make tough decisions
             | ("intentionally putting their own stylistic spin on it").
        
               | pythko wrote:
               | I don't really understand that idea of complexity, but
               | Rick Beato is addressing this song from a music theory
               | perspective, and I think this song would meet anyone's
               | definition of complex when it comes to theory.
        
               | tallies wrote:
               | There's no one 'music theory perspective'. Why not
               | analyze it on more axes?
               | 
               | - Rhythmic patterns and variation
               | 
               | - Interplay between instruments
               | 
               | - Instrumentation and arrangement
               | 
               | - Structure
               | 
               | - Vocal style
               | 
               | - Lyrics
               | 
               | - Recording and mixing
               | 
               | By these metrics (and the ears of 99% of its listeners)
               | it's a more or less generic 80s adult contemporary song.
               | Yes it has a weird chord progression. Would it be more
               | complex if it couldn't be boiled down to a series of
               | chords?
        
           | hackernewds wrote:
           | Most of the notes do give it that vitality though. Here's a
           | John Mayer example where the simple version "works" but the
           | full version is pure magic
           | 
           | https://youtube.com/shorts/navD83-aLYs
        
         | coliveira wrote:
         | Rick Beat is trying to deceive you. If you really believe that
         | this Sergio Mendes song is complicated, you need to listen to
         | some older pop songs. For example, Stevie Wonder is a good
         | composer to start.
        
         | dehrmann wrote:
         | > The obligatory video is of course "Four Chords" by Axis of
         | Awesome
         | 
         | The original: https://www.youtube.com/watch?v=8s13sASS5F4
        
         | drcongo wrote:
         | That Mendes song makes all sorts of twists and turns that your
         | brain doesn't expect (want?) it to. Personally I find it deeply
         | uncomfortable to listen to, it might as well be four songs
         | playing at once.
        
           | hejpadig wrote:
           | This kind of stuff is fascinating to me, that we can react so
           | differently to music and specifically to various chord
           | progressions. Of course personal taste is inscrutable in some
           | sense, but could it also be about conditioning? E.g. if you
           | listen a lot to certain types of jazz you might get used to
           | some stranger chord movements. I have a lot of friends who
           | cant stand Steely Dan progressions for example, though I love
           | them myself. Here's an example of strange chord movements
           | that I personally like a lot more than the Sergio Mendes
           | song:
           | 
           | https://www.youtube.com/watch?v=SXnUa6SNJFQ (Video showing
           | the chords more clearly)
           | https://www.youtube.com/watch?v=EPIaw-MgNzM (Original song)
        
             | coliveira wrote:
             | Jazz sounds too complicated, but it is not. More than 90%
             | of it is just a set of 2,5,1 sequences disguised in clever
             | ways.
        
             | hamburglar wrote:
             | I do think conditioning must be a big part of it. I hadn't
             | ever listened to this song since getting a little familiar
             | with music theory but it was certainly on the types of
             | playlists my parents listened to when I was a kid.
             | Listening to it now, I can see what's unusual about it but
             | it never would have occurred to me to consider it hard to
             | listen to. Repetition legitimizing and all that. My parents
             | weren't jazz listeners so it took work for me to appreciate
             | it as an adult, and now I can't help but wonder if the
             | better path for my kids is to get them used to it early or
             | to let them have that same "whoa" experience later. (Only
             | partially serious; of course they should be exposed to it.
             | :D)
        
               | crawfordcomeaux wrote:
               | You could give them access to instruments and let them
               | make their own "whoa" moments. Also, Sun Ra's music
               | exists well beyond most jazz, especially mainstream jazz,
               | as he tried to create jazz that's not catering to white
               | tastes.
        
             | crawfordcomeaux wrote:
             | After accidentally abandoning my likes/dislikes and
             | disengaging disgust, my experience of music viscerally
             | changed. I can enjoy all music now.
             | 
             | So much of it is conditioning, maybe all of it. There's
             | conditioning around chords, progressions, dissonance,
             | harmony, repetition, subjective ideas of what constitutes
             | music, and so much more.
             | 
             | The only way to prove it isn't mere conditioning is to
             | remove the conditioning and then evaluate.
        
               | bambax wrote:
               | This is so true -- to a point. One can still have likes
               | and dislikes, provided it's their own.
        
             | pdpi wrote:
             | For me, the difference between that Steely Dan song and the
             | Mendes song is like the difference between a seemingly-
             | inscrutable really thick scottish accent and an ESL speaker
             | trying to affect a native accent and kind of flowing
             | between several different accents.
             | 
             | However uncomfortable the Steely Dan song might be, it has
             | a nice consistent construction to it, and, once you get
             | into the groove, it becomes straightforward. Almost all
             | music I listen to that I'd call complex, from classical to
             | prog metal to jazz, can be described like that too.
             | 
             | The Mendes song, however, sounds disjointed to me. It
             | sounds built out of all sorts of fairly standard bits and
             | pieces, but thrown around completely haphazardly.
        
               | visarga wrote:
               | > It sounds built out of all sorts of fairly standard
               | bits and pieces, but thrown around completely
               | haphazardly.
               | 
               | I found a similar feeling in Shostakovich:
               | https://www.youtube.com/watch?v=IDeJeBvln6E But I enjoy
               | this challenge. It's a beautiful yet strange and twisted
               | music.
        
               | pdpi wrote:
               | Hmm, I disagree. That Shostakovitch piece (nice one,
               | thanks for the link, btw!) feels to me more like trickery
               | and misdirection. It builds up your comfort then throws
               | you off, and it gets more and more off-kilter the longer
               | you go. It's very deliberate and purposeful about where
               | it's going.
        
           | drcongo wrote:
           | I'm now watching the Rick Beato video about it and I'm so
           | glad it's not just me whose brain recoils at the chord
           | progressions. Thank you.
        
           | default-kramer wrote:
           | Ha, I don't think I've ever heard that song before and I love
           | it. Usually increasing the complexity of music makes it less
           | comprehensible. I really respect those rare songs that are
           | technically impressive to musicians while also being
           | comprehensible (and sometimes downright catchy) to "normal"
           | people. And I think Never Gonna Let You Go nails it. But of
           | course, it is totally subjective.
        
       | taylodl wrote:
       | What this data shows is G Major truly is the "people's key." For
       | those not familiar with music a 12 bar blues uses 3 chords: the
       | so-called I, IV, and V chords (the first, fourth, and fifth
       | chords in the key). In the key of G that would be G (I), C (IV),
       | and D (V). Look at the most popular chords.
       | 
       | Instead of analyzing by chords I would have analyzed by key -
       | what keys do you need? Convention says G Major is the "people's
       | key" and so it makes sense to learn since so many songs use it.
       | The key of A minor is pretty popular, and so is it's relative C
       | major. Throw in E minor (which is G major's relative minor!) and
       | with those 4 keys you can play the bulk of all rock and popular
       | music written over the past 50 years!
        
         | jefftk wrote:
         | The reason I approached this by chords instead of keys, is that
         | I'm building an electronic instrument. [1] I can set it to play
         | in any key before starting a song, but I'm trying to figure out
         | how I should trigger chords (and what chords I will want to
         | trigger) in the moment.
         | 
         | [1] demo: https://youtu.be/JWj3QP9wsCU
        
         | dehrmann wrote:
         | > What this data shows is G Major truly is the "people's key."
         | 
         | Unless you have a keyboard in your band. Then it's C.
        
           | tmountain wrote:
           | Hopefully the keyboardist can manage a single sharp.
        
         | tarentel wrote:
         | I've never heard it called "people's key" but a lot of rock and
         | popular music written in the past 50 years was written on
         | guitar where these keys are the easiest to play. I imagine Am/C
         | are easiest on a piano but I am not a very good piano player to
         | begin with.
        
         | drchopchop wrote:
         | Side note, from a usability perspective: G major is arguably
         | the easiest key to play on a guitar, which is used heavily by
         | both popular music and songwriters. The I/IV/V maps to G, C, D,
         | which are all easy open chords to finger, plus Em is also
         | simple (two fingers).
         | 
         | (Many of the other options include either B major or F major in
         | the I/IV/V, and those are considerably more difficult to play)
        
           | tshaddox wrote:
           | D major and A major are the other ubiquitous beginner-
           | friendly keys for guitar. I distinctly remember a few months
           | into getting my first guitar concluding that G major was so
           | much better because Em is so much easier to play than Bm or
           | F#m. :)
        
           | mjr00 wrote:
           | Yeah agreed, G and E make the most sense for guitar for those
           | reasons. Although equal temperament makes all scales sound
           | the same _in theory_ , there are often practical concerns.
           | For example, EDM is very often in D#, E, F, F#, or G minor.
           | There's a good reason for this: sub bass frequencies hit
           | hardest around F. G#, A, A#, B and C sound too high, and
           | anything lower than D# you risk playing on club speakers that
           | can't produce the frequency well.
        
           | taylodl wrote:
           | The key of G (G,C,D) is really easy to play on guitar and so
           | is the key of C (C,F,G). A lot of beginning guitarists
           | struggle with an F if you play it as a barre chord on the
           | first fret of the low E string. My favorite option for
           | playing an F is to play an FMaj7 using just the D (3), G (2),
           | B (1) and e (open) strings which is an open chord. If you ask
           | me to play an F chord that's what I'm going to play. I've
           | also heard it referred to as the "rock 'n roll" F.
        
       | mellosouls wrote:
       | As somebody without musical knowledge beyond the first chords you
       | might learn for pop guitar, after reading this article I still
       | have no idea which chords I need.
        
         | analog31 wrote:
         | If you're learning the instrument, you'll generally learn them
         | as you progress, starting with beginner material that may have
         | only one or two chords. At some point you will know "many"
         | chords and be possessed to learn more, and may eventually
         | pursue "every" chord.
         | 
         | Any physically realizable fingering on the guitar is a chord.
         | Whether it's useful is another matter. Different permutations
         | of the same notes, in different ranges, is a way to add things
         | like motion and emphasis in the music.
         | 
         | Another way of looking at it is how many chords are you likely
         | to encounter if you get into something like a band or jam
         | session situation, where you're expected to hear a chord and
         | play it. That depends on the musical style, and where the music
         | came from. For instance, tunes that were composed for other
         | instruments might have their own chordal language that results
         | in the same chords cropping up unexpectedly in guitar music.
         | 
         | A lot of folk music has its own "logic" for lack of a better
         | term, based on the mechanics of the instrument.
        
           | mellosouls wrote:
           | Thanks for taking the time to help elaborate. When I opened
           | the article I was (naively?) kind of hoping to find a list of
           | chords that would have me covered for most situations, but
           | was unable to determine from the Roman numeric jargon being
           | used if that was so.
        
       | jancsika wrote:
       | Another way to put this is that for most _pop music_ , you
       | _could_ often degrade gracefully to three triads of major or
       | minor quality.
       | 
       | But even for something discussed previously on HN-- the Beach
       | Boys "God Only Knows"-- this doesn't work. Wilson really wants a
       | half-diminished seventh chord at the high point of the melody.
       | One could perhaps degrade to a diminished triad in the
       | accompaniment, but he's literally singing the seventh of the
       | chord so it's there regardless. Substituting a major or minor
       | triad there is a qualitative change and sounds suspicious.
       | 
       | If you're making your own instrument you might want to be aware
       | that there's a "suspicious" sound that some types of consistent
       | chord substitutions can have on certain classes of instruments.
       | 
       | For example, a bagpiper can make severe simplifications to the
       | harmony or even change melodic intervals to fit what they have
       | available. Audiences generally accept this because the strictures
       | of the instrument have made that a common practice. (Even if
       | you're unaware of the strictures, you've probably gotten used to
       | hearing the result of the common practice.)
       | 
       | However, if one consistently employs major/minor triad
       | substitutions on the guitar people are eventually going to hear
       | that as a lack of quality. As in the Beach Boys example, this
       | will often happen during key points. The guitarist may get lucky
       | if the singer happens to fill out the missing note of the chord--
       | e.g., guitarist plays a minor triad and the singer fills out the
       | seventh at the beginning of the chorus of "Last Dance with Mary
       | Jane"-- but eventually the audience will figure out that the
       | guitarist is missing a vital skill.
       | 
       | Anyway, unless your instrument is so novel it doesn't have any
       | associations with extant instruments, make sure you have some
       | kind of "escape hatch" so that skilled performers can play the
       | chords they need. :)
        
         | lb1lf wrote:
         | Francis Rossi, of Status Quo fame/notoriety, depending on who
         | you ask, quipped when presented with some award or other -
         | "Wow! Twenty-five years. Three chords. Thank you!"
         | 
         | I love it when people do not take themselves too seriously.
        
           | jancsika wrote:
           | Look, I'm just a caveman. I fell in some ice and later got
           | thawed out by some of your scientists. My primitive mind
           | can't grasp these concepts.
           | 
           | But there is one thing I do know:
           | 
           | When composers want to emphasize the chord they're about to
           | play, they will often choose a new chord consisting of notes
           | within a step or half-step of the original. And they will
           | quickly play that new chord as a way to smoothly introduce
           | the chord they wanted to emphasize.
           | 
           | Whether it's Mozart in the retransition of the G minor
           | symphony, Wagner in a transitional phrase of the interminable
           | Gotterdammerung, or a folksy award winning singer-songwriter,
           | that new chord counts as a chord. And that new chord _must be
           | added to the sum total number of chords used in the song_.
           | 
           | Thank you.
           | 
           | Edit: the Mozart chord is G-G#-B-Eb, as a kind of "neighbor
           | garbage chord" of a dominant seventh in G minor. For Wagner,
           | I can't remember what key it was in, but it's a half-
           | diminished seventh chord with a pedal-tone a minor third
           | below the root. It's function is as a neighbor chord to a
           | dominant seventh built on that same pedal-tone. Not sure
           | about OP's reference but I bet I could find an interesting
           | transient chord in there, too.
           | 
           | Edit2: Oh yeah, the Wagner reference is indeed Wagner, so you
           | can be sure it gets sequenced with at least three iterations
           | in case you missed it the first time.
        
       | phpisatrash wrote:
       | Basically, if you know a scale, for example the D major scale you
       | can play anything.
        
         | TaupeRanger wrote:
         | Not if the song contains any modulations, secondary dominants,
         | borrowed chords, etc. It's not uncommon.
        
         | asdffdsa wrote:
         | That and the natural minor scale
        
       | rubyist5eva wrote:
       | I like progressive rock/metal and technical death, so....all of
       | them.
        
       | Sharlin wrote:
       | Heh, I _just_ this afternoon listened to a radio show about the
       | famously popular vi-IV-I-V /I-V-vi-IV chord progression [1]. If
       | you haven't heard it before, the "4 Chords" medley by Axis of
       | Awesome is a great demonstration of its ubiquity [2].
       | 
       | [1]
       | https://en.wikipedia.org/wiki/I%E2%80%93V%E2%80%93vi%E2%80%9...
       | 
       | [2] https://youtu.be/oOlDewpCfZQ
        
       | MikeTaylor wrote:
       | I wonder what he would make of _I Am The Walrus_, which uses
       | every note-named major chord (A, B, C, D, E, F and G major).
        
       | webscalist wrote:
       | and welcome to atonality
        
       | Taywee wrote:
       | Tangentially related, but the video game The Legend of Zelda:
       | Ocarina of Time has twelve pieces of different styles and
       | progressions on a melody of only five notes. Dan Bruno did a very
       | nice analysis of the music theory behind the composition of the
       | tunes in the game: https://danbruno.net/writing/ocarina/
        
       | nawgz wrote:
       | Just Cmaj7#11, best chord. Just scream while you play it and
       | you're halfway to being a metal band
        
         | willismichael wrote:
         | The other half is hiring this percussionist:
         | https://youtu.be/TfML1WEWfwk
        
       | beardyw wrote:
       | > And a few, like "Gee, Officer Krupke", just use a ton of chords
       | in a way I don't really understand.
       | 
       | Leonard Bernstein seems to have a knack of writing simple
       | sounding songs but with every chord in the book. I noticed the
       | same in Tonight.
        
       | dharma1 wrote:
       | Blah.. it's a bit like "What words you need to write a book"
       | 
       | It's about how you combine them in a sequence, how you arrange
       | the instruments, how you voice the chords and do voice leading,
       | and how you combine them with the melody and rhythm
        
         | CobrastanJorji wrote:
         | Sure, except most people aren't writing books, they're doing
         | readings of existing books. So the question is "how many words
         | can they pronounce?" You can be a great poet, but if you want
         | to do a reading of Annabelle Lee, you need to know how to
         | pronounce "sepulcher."
        
       | viburnum wrote:
       | How can more songs have V than I?
        
       | omarhaneef wrote:
       | I wonder how much the chord-space would shrink farther if you
       | took out the bridge/intro where people tend to mix it up. And if
       | you could adjust when the song shifts keys in the chorus and
       | verse. (Although I didn't keep up with all the simplifications so
       | maybe that is already in here).
        
         | jefftk wrote:
         | _> Although I didn 't keep up with all the simplifications so
         | maybe that is already in here_
         | 
         | That one isn't there, because the original motivation of the
         | post was trying to design a chord input system for an
         | instrument. In which case I'm happy telling the instrument in
         | advance "this next song is in Dm" but not changing that on the
         | fly (hands are full)
        
         | np_tedious wrote:
         | Or last verse/chorus up-modulation
        
           | beardyw wrote:
           | A loathsome practice which irritates me unreasonably.
        
       | laGrenouille wrote:
       | Interesting quantitative take studying chord distribution. The
       | basic takeaway seems to be that if you re-phrase a song into a
       | different key you can play a lot with just a few chords (I IV V),
       | and even more with a few others.
       | 
       | While I would agree that you'll be okay playing any major scale
       | in C major (or whatever other major key choose to learn), playing
       | a song in a minor scale on a major scale just doesn't sound quite
       | right. So, I'd double all of the numbers on their final table to
       | account for learning a full set of major and minor chords.
        
         | LtWorf_ wrote:
         | But A minor is the same notes as C major.
         | 
         | The chords in the key of C major will be the same chords in the
         | key of A minor, although their patterns might be different.
        
           | tarentel wrote:
           | This is only partially true. The chords in A natural minor
           | will be the same but it's much more common to hear a dominant
           | fifth using the harmonic minor so you would change the Em to
           | E especially in classical and jazz music.
        
             | asdffdsa wrote:
             | nit: jazz is the melodic minor (raised 6th as well). Such a
             | beautiful sound; and the modes allow you to get the altered
             | scale (7th mode of melodic minor) which sounds good(?) over
             | the dominant
        
         | circlefavshape wrote:
         | If you know I, ii, iii, IV, V, vi in C then you'll be able to
         | play tunes in A natural minor. Add III to cover A harmonic
         | minor, and II to cover A melodic minor
         | 
         | In real life though the key usually depends on the singer's
         | vocal range, so you won't really get away with learning just
         | one key
        
           | laGrenouille wrote:
           | Yes, that's a good point in the case of six keys (I think my
           | point holds for just learning three), but it is not the one
           | made that the article seemed to make.
        
           | tarentel wrote:
           | In A harmonic minor the III is already a C, you can make it
           | augmented but that is not very common. You generally change
           | the v to a V and keep the VII diminished in both cases where
           | as it is major in the natural minor.
        
             | PhaseLockk wrote:
             | He was saying that the III of C major is the V of A minor,
             | and so if you are planning to play in A minor using a set
             | of chords pulled from C major, you may want to add a III
             | alongside the iii.
        
               | tarentel wrote:
               | Ah, when phrased that way it makes sense. I
               | misunderstood. We're just saying the same thing in two
               | different ways.
        
       | calflegal wrote:
       | Trouble with this sort of thing is the subjectivity of 'what
       | chord is this?', taking into account inversions and the like.
       | CMaj7 has C / E / G / B? Who says this isn't Emin6 with the 6th
       | in the bass? It'll depend on the way it's heard and its context
       | within the song, but many approaches can impact this sort of
       | thing.
       | 
       | EDIT: I wrote this without carefully reading the article (oops!).
       | Author does a great job with the "adjustments"...I suspect
       | adjusting to relative minor covers a huge amount of these issues,
       | and the author throws in mixolydian for good measure! There will
       | always be edge cases, secondary dominants, modulations, blah blah
       | blah, but I suspect adjusting to include relative minors handles
       | the vast majority of popular music.
        
         | [deleted]
        
         | sampo wrote:
         | > CMaj7 has C / E / G / B? Who says this isn't Emin6 with the
         | 6th in the bass?
         | 
         | The person who wrote it down as CMaj7 and not Emin6/C says.
        
         | alar44 wrote:
         | Bingo. Sting had a quote that was something like "All chords
         | are ambiguous until I decide on a bass note to play."
        
           | tmountain wrote:
           | Playing rootless triads really brings this home. It allows
           | jazz guitar players to have greater better mobility by
           | offloading the bass to the bassist, but if you play a
           | rootless ii-V-I exclusively on the guitar, the chords loose
           | all their color/character.
        
             | alar44 wrote:
             | Yep, the hardest thing about learning to comp is that you
             | can't do it alone.
        
               | tmountain wrote:
               | Unless your name is Joe Pass.
        
           | mgkimsal wrote:
           | Similarly, I remember McCartney saying he started to realize
           | there was some musical control you could have in a song, not
           | just having to play "root of the chord" bass notes.
           | 
           | "Yeah, as time went on, definitely bass, I started to think,
           | Wow, you know? Once I realized that you didn't have to just
           | play the root notes. If it was C, F, G, then it was normally
           | C, F, G that I played. But I started to realize that you
           | could be pulling on that G, or just staying on the C when it
           | went into F. And then I took it beyond that..... Once you
           | realized the control you had over the band, as we talked
           | about earlier, you were in control. They can't go anywhere,
           | man. Ha! Power!"
           | 
           | (source: https://reverb.com/news/interview-paul-mccartney-on-
           | his-life...)
        
             | alar44 wrote:
             | 100%. Every Little Thing She Does by the Police has only
             | two chords in the verses but Stings choice of bass notes
             | make it sound like 8+, root notes be damned.
        
               | javajosh wrote:
               | Whenever I hear that song, I wish the intro would just go
               | on and on and on.
        
             | dehrmann wrote:
             | Regarding the opening chord of "A Hard Day's Night," George
             | said
             | 
             | > It is F with a G on top (on the 12-string), but you'll
             | have to ask Paul about the bass note to get the proper
             | story
        
         | grafs50 wrote:
         | I think the difference here is how it functions in the music.
         | Does the chord function as a CMaj7 in relation to the rest of
         | the song, or does it function as an Emin6?
        
         | tejohnso wrote:
         | Great video here talking about the name of one chord in the
         | intro to Stairway To Heaven. Three different youtubers chime in
         | to discuss it. Really shows how much nuance there can be and
         | how ambiguous the naming can be. There was no real consensus.
         | One of the suggestions was "a minor major nine" and another was
         | "e seven flat thirteen over g sharp".
         | 
         | "The name is there to express a feeling. If you don't know any
         | context it can be hard to put a definitive label on a chord." -
         | Paul Davids
         | 
         | https://www.youtube.com/watch?v=eXqNyWehVEQ
        
         | titzer wrote:
         | That and sometimes chords/notes could be labeled either flat or
         | sharp. I thought that was really an annoying ambiguity until it
         | suddenly made a whole lot more sense--there are 7 letters for a
         | reason; in a given key, we generally want to use all 7 letters
         | to describe the scale tones, instead of repeating one. I think
         | the same goes here, knowing what key the song is in tends to
         | suggest certain chord spellings over others.
        
       | TrueTom wrote:
       | "In this video, I describe a common problem with the way
       | guitarists cover popular songs by using open chords far too
       | regularly. The trouble with open chords is that they often ignore
       | important melodic and harmonic features. Hence, zombie chords. So
       | dull they sound dead. It's spooooooooky!"
       | 
       | https://www.youtube.com/watch?v=BEWQNKbXHQk
        
         | eatonphil wrote:
         | I started playing guitar in middle school and I hated learning
         | complex chords so I'd do what this video suggested and just
         | play the stripped down/simplified version of the chord.
         | 
         | But it's not just about open chords. If you strip down a Bm7b5
         | to a Bm and play the Bm on the second fret it still has half of
         | the character of the Bm7b5 chord.
         | 
         | Only recently did I start gaining the patience to learn every
         | suggested chord and it makes a tremendous difference.
         | 
         | That said, I prefer piano for accompanying because the piano's
         | tone is somehow more forgiving with basic chords than guitar
         | is.
        
           | usrn wrote:
           | IMO: It's much better to understand how to construct chords
           | and then play music and memorize them by trying to play both
           | the melody and some kind of accompaniment. You end up getting
           | stuck in situations where you need to rearrange the chord or
           | learn a new one and you can build them up that way without
           | drilling.
        
             | eatonphil wrote:
             | I do know the basics of chord construction but it's still
             | way easier to think through it on a piano because keys are
             | all linear whereas with guitar strings you have to
             | translate across strings with varying relationships. Not
             | saying it's impossible it just takes more work to
             | internalize that on guitar than piano. And I'm not there on
             | guitar.
        
           | BizarroLand wrote:
           | Yeah, for instance, it's much easier to melodically space out
           | or articulate the notes in a chord on a piano so they don't
           | clunk all together like the strum of a guitar without ever
           | crossing into arpeggio. That can make for beautiful open
           | melodic chord playing when you're jamming out or noodling
           | around without ever breaking the rhythm.
        
         | re wrote:
         | > While it's almost always I, IV, V, and vi, we have both II or
         | ii, and III or iii, differing on whether the third is major or
         | minor. One way to handle this is just to drop the third from
         | all the chords and play them open
         | 
         | Note that what jefftk calls "open chords" are more commonly
         | called "power chords" (or "indeterminate" or "no3" or "5"
         | chords). This is a distinct concept from the open/"zombie"
         | chords that that youtube video is about. (But if you did use
         | only power chords when covering songs, they would also usually
         | sound quite dull!)
         | 
         | https://en.wikipedia.org/wiki/Power_chord
         | 
         | https://en.wikipedia.org/wiki/Open_chord
        
           | jefftk wrote:
           | I've now edited the post to say "chords without thirds"
           | instead of "open chords", which should reduce this confusion
        
         | ARandumGuy wrote:
         | I was going to link that exact video. That video does a good
         | job of explaining the problem with simplifying more complicated
         | chords. Yes, you can get rid of the "extra" bits and the song
         | is still recognizable. But those extra elements are what give a
         | song character, and simplifying it down to just a handful of
         | chords causes a song to sound bland and generic.
        
           | tchock23 wrote:
           | It explains the problem, but doesn't really offer any
           | solutions for those of us stuck on 'campfire chords.' Any
           | suggestions for videos that do offer solutions?
        
       | shampto3 wrote:
       | One site I use occasionally for helping come up with chord
       | progressions is hook theory's chord trends [1]. It has an
       | interactive graph that shows you how common it is for a specific
       | chord to come next when you choose a starting chord. It's very
       | helpful in looking at a few options out there, instead of trying
       | to reinvent the wheel every time.
       | 
       | 1. https://www.hooktheory.com/trends
        
       | squidsoup wrote:
       | My mate in the music industry always said you only need "three
       | chords and the right haircut".
        
       | [deleted]
        
       | adamnemecek wrote:
       | I'm working on an IDE for music composition. Chords and music
       | theory will be very much front and and center. Launching next
       | month.
       | 
       | https://ngrid.io
       | 
       | Join the discord https://discord.gg/a5ttYuG
        
         | and0 wrote:
         | Subscribed (not on Discord). Glad to see! I've bounced off
         | music theory but part of me knows that I would learn the hell
         | out it if I tried to implement an engine (and corresponding
         | interface) around it. I know many exist and I'd probably find
         | through even shallow research that it'd be 100x harder than I'm
         | imagining, but I wouldn't know half of what I know if I thought
         | ahead like that :P
         | 
         | But as with reading this article, as an avid music lover I'm
         | afraid to ruin how I feel about some of my favorite
         | compositions.
        
           | adamnemecek wrote:
           | That's the problem, not that many actually exist.
        
       | duped wrote:
       | This feels like a stone's throw from Schenkerian analysis (1)
       | where in practice, lots of harmonies devolve to a simple
       | foundational structure. Even the tough stuff to reason about like
       | the example at the bottom of the page, _Gee, Officer Krupke_
       | which is tricky because of the jazz /ragtime influence on the
       | chromaticism of the harmony and melody basically reduces down to
       | leading tone resolution and local key changes (V-I resolutions).
       | It's setting up the zingers like "naturally we're punks" (V-I),
       | "deep down inside of us there is good" (V-I) coming from
       | chromatic turnarounds.
       | 
       | (1) https://en.wikipedia.org/wiki/Schenkerian_analysis
        
         | dehrmann wrote:
         | I recently figured out the chords to "Sk8er Boi" by Avril
         | Lavigne. It would be all over the place in the analysis in this
         | article, but it's because the chorus is in a different key, and
         | the out of key chord in the verse is actually borrowed from the
         | chorus. It's surprising clever for what I assumed was an easy
         | pop punk song. There was even some word painting with the line
         | "She needed to come back down to earth" coming right before the
         | key drop going into the verse.
        
         | [deleted]
        
       | robbyking wrote:
       | It would be interesting to break this down by genre. Jazz likes
       | to "borrow" notes to construct chords that aren't diatonic, and
       | metal likes to add the flat II and V almost as a rule.
        
       | klodolph wrote:
       | A couple notes
       | 
       | > While it's almost always I, IV, V, and vi, we have both II/ii
       | and III/iii, differing on whether the third is major or minor.
       | 
       | This might be a bit confusing as written, because the slash "/"
       | is normally used in roman numerals to indicate secondary chords.
       | For example, the II chord may be written as V/V. (V/V is always
       | II, but not the other way around... the "/" notation indicates
       | that the chord is functioning as a secondary chord, which is
       | something you figure out from context.)
       | 
       | The terminology "open chords" is also a bit unusual. The term
       | "open chords" usually refers to chords that use open strings
       | (strings that are not fingered). Chords without a third are often
       | called "power chords". You can do your entire song with power
       | chords if you're playing rock music.
       | 
       | I'd also add that what chords you get as the three/four chords
       | you need depends so heavily on genre. If you were playing blues,
       | you might pick I7, IV7, and V7 for your first three, and then
       | maybe bVII7 as the fourth. If you were playing jazz, you might
       | pick something like I69, ii9, IVmaj7, V7.
        
         | jefftk wrote:
         | _> This might be a bit confusing as written, because the slash
         | "/" is normally used in roman numerals to indicate secondary
         | chords._
         | 
         | Sorry, that's not something I'd seen. Edited the post to switch
         | to "or".
         | 
         |  _> The terminology  "open chords" is also a bit unusual. The
         | term "open chords" usually refers to chords that use open
         | strings (strings that are not fingered)._
         | 
         | Looking some, you're totally right. I'm confused where I picked
         | up the idea that these were called "open"? I think I've seen
         | them written like "G<sub>open</sub>" to indicate that you don't
         | play a 3rd? Calling them "power chords" in a non-rock context
         | sounds off to me, though. Edited the post to call them chords
         | without thirds.
        
           | the_fury wrote:
           | Most people would also understand that there's no 3rd if you
           | call it a G5.
        
           | javajosh wrote:
           | _power chords ... call them chords without thirds._
           | 
           | Not a guitarist, but I always assumed "power chord" referred
           | to lots of doubling up over octaves, not the absence of a
           | third.
        
             | duped wrote:
             | It almost always refers to a perfect fifth, optionally with
             | the octave on top. It's a very easy thing to play with two
             | or three fingers, either on guitar or keyboard.
        
           | PrimeDirective wrote:
           | > Calling them "power chords" in a non-rock context sounds
           | off to me, though
           | 
           | Even jazz musicians call them powerchords
        
             | H1Supreme wrote:
             | Every guitar player calls them powerchords. I've never
             | heard of another term. Unless OP is referring to double
             | stops. But, those are more of an embellishment, and usually
             | never played on the low E or A string.
        
             | taylodl wrote:
             | Jazz, rock, and pop guitarists and keyboardists all call 5
             | chords power chords.
        
           | progre wrote:
           | > Calling them "power chords" in a non-rock context sounds
           | off to me, though.
           | 
           | Lots of powerchords in pop too. "powerchord", to me at least,
           | implies that there is a distortion effect somewhere in the
           | signal chain. Powerchords on their own sounds really weak.
        
             | em3rgent0rdr wrote:
             | Outside of rock or guitar world, it is very unusual to hear
             | them be called "power chords". That lingo is best avoided.
        
             | jefftk wrote:
             | When playing mandolin I rarely play thirds
             | (https://www.jefftk.com/p/mandolin-teaching-videos), but
             | I'm also playing traditional music, acoustic, where "power
             | chords" sounds strange?
        
             | karmakaze wrote:
             | Co-incidentally the first graph looks like a pair of 'hand-
             | horns'.
        
         | beepbooptheory wrote:
         | In general, the conflation of "chords" and "harmony" can be
         | just _little_ sticky, because one implies something the
         | instrument is doing, and the other what the composer
         | /band/piece does. An instrument might be making lots of chord
         | changes, but that doesn't necessarily mean there is any overall
         | harmonic motion happening.
         | 
         | Sure in rock'n'roll the guitar player isn't hitting the third a
         | lot, but the singer almost certainly is!
         | 
         | Also, if you are playing modern jazz, you are not really doing
         | functional harmony like this analysis assumes except at a very
         | macro level. Chord changes there are about color more often,
         | only punctuating with a true harmonic change. This can be true
         | even if they are moving from, say, an I9 to IV9. That _seems_
         | like a  "change", but its really just elaborating on the I.
         | 
         | I seem to remember "open chords" in my brief counterpoint
         | studies, but can't find anything to back that up now. But in
         | counterpoint you could talk about the openness of certain
         | "harmonies" in terms of their compatibility to any number of
         | changes. Something with a lot of doubled roots and fifths are
         | less open to changing, if you are following the "rules".
        
           | tejohnso wrote:
           | > In general, the conflation of "chords" and "harmony" can be
           | just little sticky, because one implies something the
           | instrument is doing, and the other what the composer/band
           | does.
           | 
           | Maybe not directly related or as confusing, but also worth
           | noting here I think is that you can play three notes
           | sequentially and still call it a chord. It would be a "broken
           | chord". And you can play just two notes simultaneously as a
           | "harmonic interval".
        
           | klodolph wrote:
           | I'm not going deep into Jazz, but if I'm playing a song with
           | something like I vi ii V, then I'm going to likely color
           | those chords with the 7th (at the minimum) and likely
           | additional extensions.
           | 
           | I picked something like I69 not because it has _function_
           | different from I, but because a 6 /9 chord is a common choice
           | for a Jazz musician to play as a I chord. Or, at least, it's
           | one of my first picks. And if you're playing I9 -> IV9, my
           | question is whether the I IV is just comping on I or whether
           | it's harmonic movement.
           | 
           | And I will say that while there is no requirement to use
           | functional harmony in Jazz, there is a massive repertoire of
           | Jazz that uses functional harmony, or at least uses harmony
           | where you can get insight by analyzing it functionally. For
           | example, I might analyze something as "bV7/V I" in a jazz
           | song and that _is_ both very functional and very jazzy, and
           | in a classical piece I might see  "N6 V7 I" and while N6 and
           | bV7/V are similar chords, using the chord with dominant
           | function is, stylistically, a jazz idiom.
        
       | welfare wrote:
       | > For example, "Kitchen Girl" needs "A G" for the first half of
       | the tune (confusingly called the "A part")
       | 
       | This is standard notation, especially in American folk music,
       | that sections are labeled A, B and sometimes C. This makes it
       | very convenient when playing with others who're not familiar with
       | the tune (e.g. This is Kitchen Girl, key of A, two A parts, two B
       | parts)
        
       | sineroth wrote:
       | if u wanna get laid 3 is lots
        
       | Aidevah wrote:
       | Slightly related is the question "How many different notes do you
       | need in the bass to harmonise any melody?", and the answer was
       | provided by Obrecht in the final section of his Missa Malheur me
       | bat[1] dating from around 1497. The original tune is here[2].
       | While the section was probably written partly as a joke, it's
       | interesting how you really only need the 1st and 5th scale
       | degrees to cover the majority of the song tune.
       | 
       | [1] https://www.youtube.com/watch?v=KLyfr_dQTBc&t=293s
       | 
       | [2] https://www.youtube.com/watch?v=UrZKnEXKwn0
        
       | cjohnson318 wrote:
       | Thinking about this in terms of the circle of fifths, there's a
       | lot of representation of the keys that are from 12 o'clock to 3
       | o'clock, keys C, G, D, A, respectively. I think if you looked at
       | jazz standards from the Real Books, you'd see a different
       | histogram, stressing the keys Eb, Bb, F, C.
       | 
       | A lot of Western music centers around a tonal center, and then
       | rocks back and fourth on the circle of fifths between IV and V. A
       | lot of pop tunes these days add the vi, further to the right on
       | circle of fifths.
       | 
       | In contrast, jazz music tends the move down in fourths a lot, so
       | you see ii-V7-I all over the place, a lot of vi-ii-V7-I, and a
       | sometimes a iii-vi-ii-V7-I. All of these progressions just start
       | some place on the circle of fifths, and then go counter-clockwise
       | until they reach the intended tonal center.
        
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