[HN Gopher] Quantum Computer Music
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       Quantum Computer Music
        
       Author : e12e
       Score  : 34 points
       Date   : 2023-12-24 05:14 UTC (1 days ago)
        
 (HTM) web link (www.ctm-festival.de)
 (TXT) w3m dump (www.ctm-festival.de)
        
       | Rochus wrote:
       | " _If you are interested in a more in-depth introduction to the
       | emerging field of Quantum Computer Music, I recommend the book,
       | Quantum Computer Music: Foundations, Methods and Advanced
       | Concepts, published by Springer in 2022._ "
       | https://link.springer.com/book/10.1007/978-3-031-13909-3
       | 
       | By the end of the day just another source of (quasi) random
       | numbers which are somehow interpreted as music, isn't it?
        
         | CrypticShift wrote:
         | > random numbers which are somehow interpreted as music
         | 
         | My initial reaction was similar. Nonetheless, I'm making an
         | effort to embrace the diversity of what music can mean to
         | different individuals. My only question to them is: are you
         | genuinely moved by the music itself or do you "merely"
         | intellectualize it?
         | 
         | That being said, is this emerging field of Quantum Computer
         | Music solely focused on generating random numbers? I must admit
         | I only glanced through the article, so I wouldn't assert this
         | definitively.
        
           | Rochus wrote:
           | > _I 'm making an effort to embrace the diversity of what
           | music can mean to different individuals..._
           | 
           | I'm a trained musician myself (see e.g. http://rochus-
           | keller.ch/?p=1221) and I have also been exploring algorithmic
           | composition for many years. There is no issue with diversity
           | of what music can mean.
           | 
           | The issue is from my point of view, that a lot of effort is
           | spent with different algorithmic concepts, but in the end,
           | any area of the generated number range is arbitrarily mapped
           | to MIDI notes. You can e.g. see that with the output of
           | cellular automata (which are also used in the referenced
           | book), where any random strip of the overall image is
           | interpreted as notes. You could just as well have used a
           | quasi-random generator. The use of cellular automata
           | therefore brought no added value.
           | 
           | > _is this emerging field of Quantum Computer Music solely
           | focused on generating random numbers?_
           | 
           | Whenever a new idea or technology became popular, a few
           | resourceful people started making music with it. Now it's
           | quantum computers. Over the years, many dissertations have
           | been written that have not really brought any progress. I
           | give transformer DNN a good chance, but good results are
           | likely to be a few years away.
        
         | sporkl wrote:
         | a lot of it does end up being that kind of thing, but not all.
         | some of it's kind of like how quantum math has been used to
         | model (if I remember correctly) seismology or weather, and some
         | of it's about sonifying the entire quantum state, including
         | superpositions (assuming no error/noise, the random part of
         | quantum doesn't happen until measurement, where superpositions
         | are destroyed)
        
           | Rochus wrote:
           | > _some of it's kind of like how quantum math has been used
           | to model (if I remember correctly) seismology or weather, and
           | some of it's about sonifying the entire quantum state,
           | including superpositions_
           | 
           | Well, the field of quantum computing is definitely important
           | and very promising, but it has as little to do with music
           | like the proportions in the movements of celestial bodies.
        
         | gexaha wrote:
         | there also exist a more scientific term for such practice -
         | "sonification"
        
           | Rochus wrote:
           | > _a more scientific term for such practice - "sonification"_
           | 
           | Sonification is a very useful concept, e.g. to make the blood
           | flow audible in medical ultrasound. But this is not the same
           | as algorithmic composition, which is the topic here.
        
       | sporkl wrote:
       | I co-authored a paper that was presented at the 2nd symposium
       | mentioned in this article, and I've read the textbook mentioned
       | in the article, happy to try to answer any questions
       | 
       | The paper we wrote isn't on airxiv yet but can be read here:
       | https://github.com/sporkl/superposition-rhythms/blob/main/is...
        
         | sandworm101 wrote:
         | How close to absolute zero does the audience need to be to hear
         | the music?
        
           | sporkl wrote:
           | I couldn't make in in-person, but from what I heard the
           | audience was pretty cool
        
         | dist-epoch wrote:
         | Quite cool idea.
         | 
         | Two questions:
         | 
         | Would you say you approach this more from the educational side,
         | or from the artistic one?
         | 
         | What about quantum circuits, and more complex gates (Hammond,
         | ...). Do you think about "playing" a simple quantum circuit,
         | hearing how the quantum state changes as it flows through the
         | gates from start to end?
        
           | sporkl wrote:
           | Thanks! We were originally thinking of approaching things
           | more from the educational side, but it's kind of a hard point
           | to make without experimental evidence, which we don't have.
           | 
           | As far as playing a quantum circuit through the end, that's
           | what our python and max implementations do! Should work with
           | any gate; but because it's simulation-based, there's a limit
           | to the number of qubits. We're also working on a follow-up
           | about sonifying arbitrary hamiltonians.
        
       | jancsika wrote:
       | It's too bad that technology in music refers to the means and not
       | the ends.
       | 
       | E.g., pastiche techniques in Mahler, continually developing
       | variations in Brahms. Even octatonicism in early Messiaen, or a
       | 70s DJ moving his hand back and forth on a spinning vinyl and
       | rhyming to its rhythm.
       | 
       | These are all things you can hear in the music that sound
       | qualitatively different than music written without those
       | techniques.
       | 
       | In the last excerpt from the article, I hear an upward portamento
       | (smooth rising frequency ramp). But it's the same kind of
       | portamento as one would get from classical digital
       | synthesis/resynthesis, or even analog synthesis. It may
       | technically be produced by a quantum computer, but it's not a
       | "quantum portamento" in any musically significant sense.
       | 
       | However, maybe such a thing is possible. For example, one can
       | adjust the partials in the 2nd pitch of a melody in such a way
       | that the listener cannot easily tell whether that 2nd pitch is
       | higher or lower than the first. One could then play a portamento
       | extending from the 1st to 2nd pitch, and the direction of the
       | portamento would reveal whether that 2nd pitch was indeed higher
       | or lower. So in a way, "measuring" the interval distance with the
       | portamento affects whether that 2nd pitch was higher or lower. :)
        
       | asah wrote:
       | lol, more like a (quantum) of (computer music) !
        
       | Podgajski wrote:
       | Hey! That's just as dystopian as I thought it would sound!
        
       | florilegiumson wrote:
       | The author is right that there is nothing new about making music
       | with AI. However, earlier uses of AI were for symbol
       | manipulation, whereas currently AI has the potential to be a new
       | kind of sound synthesis method. I've heard demos where sounds
       | come from these interstitial regions of latent space and so it
       | sounds like I'm listening to two things at once. I wonder if
       | quantum computers will have the ability to do something similarly
       | freaky.
       | 
       | It's really cool to use quantum computers to compose music, but
       | I'd love to see them used for things other than control of
       | "frequency modulation (FM), additive synthesis, and granular
       | synthesis."
        
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       (page generated 2023-12-25 23:00 UTC)