[Csnd] Re: Re: Silence
Date | 2007-11-12 01:13 |
From | Michael Gogins |
Subject | [Csnd] Re: Re: Silence |
Tim Mortimer asked: > Particularly in the case of silence. For example (that pops immediately to > mind), Are your voice leading algorithms operating along similar lines to > the Athena ones Mike? Not at all. My voice-leading algorithms are based upon the work of Dmitri Tymoczko, see for example http://music.princeton.edu/~dmitri/sciencearticle.html. I believe that some theorists, including Tymoczko, Clifton Callender, Ian Quinn and others, are initiating a revolution in music theory comparable to that of Riemann, who created what we now call "functional harmony." The new theory views chords as points in a space with one dimension per voice, and chord progressions and voice-leadings and motions within that space, which actually is an orbifold. An orbifold is a space in which an equivalence relation exists or, in other words, distances along one or another dimension are not infinite, but reflect from or wrap around a specific distance, a modulus. In pitch-class space, the obvious equivalence relation is the octave, and its modulus (in MIDI note numbers) is 12. There are several important equivalence classes in music theory.... I presented a paper about this at the New Orleans ICMC, and you can find a PDF of my paper online at http://ruccas.org/pub/Gogins/icmc2006-mkg.pdf, as as a more recent paper that describes the specific operations implemented in CsoundAC at http://ruccas.org/pub/Gogins/music_atoms.pdf. This approach has several advantages, not the least of which is that voice-leadings can be computed efficiently. That is because almost always, the musically best voice-leading between two chords is the shortest path between them in this orbifold. Regards, Mike |
Date | 2007-11-12 01:21 |
From | Tim Mortimer |
Subject | [Csnd] Re: Re: Silence |
Yes I was hoping you might say something like that! ; ) couldn't remember the word "orbifold" at the crucial moment. Awesome Michael. I'm very much looking forward to checking this out. Michael Gogins wrote: > > Tim Mortimer asked: >> Particularly in the case of silence. For example (that pops immediately >> to >> mind), Are your voice leading algorithms operating along similar lines to >> the Athena ones Mike? > > Not at all. My voice-leading algorithms are based upon the work of Dmitri > Tymoczko, see for example > http://music.princeton.edu/~dmitri/sciencearticle.html. I believe that > some > theorists, including Tymoczko, Clifton Callender, Ian Quinn and others, > are > initiating a revolution in music theory comparable to that of Riemann, who > created what we now call "functional harmony." > > The new theory views chords as points in a space with one dimension per > voice, and chord progressions and voice-leadings and motions within that > space, which actually is an orbifold. An orbifold is a space in which an > equivalence relation exists or, in other words, distances along one or > another dimension are not infinite, but reflect from or wrap around a > specific distance, a modulus. In pitch-class space, the obvious > equivalence > relation is the octave, and its modulus (in MIDI note numbers) is 12. > There > are several important equivalence classes in music theory.... > > I presented a paper about this at the New Orleans ICMC, and you can find a > PDF of my paper online at http://ruccas.org/pub/Gogins/icmc2006-mkg.pdf, > as > as a more recent paper that describes the specific operations implemented > in > CsoundAC at http://ruccas.org/pub/Gogins/music_atoms.pdf. > > This approach has several advantages, not the least of which is that > voice-leadings can be computed efficiently. That is because almost always, > the musically best voice-leading between two chords is the shortest path > between them in this orbifold. > > Regards, > Mike > > > > > Send bugs reports to this list. > To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe > csound" > > -- View this message in context: http://www.nabble.com/silence-tf4786598.html#a13698393 Sent from the Csound - General mailing list archive at Nabble.com. |
Date | 2007-11-12 01:41 |
From | Tim Mortimer |
Subject | [Csnd] Re: Re: Silence |
Now if i throw in a casual remark about 'generating morse code like / obsessively non replicating but self similar / "lumpy" rhythms' do you have anything to say about that? Tim Mortimer wrote: > > Yes I was hoping you might say something like that! ; ) > > couldn't remember the word "orbifold" at the crucial moment. > > Awesome Michael. I'm very much looking forward to checking this out. > > > -- View this message in context: http://www.nabble.com/silence-tf4786598.html#a13698534 Sent from the Csound - General mailing list archive at Nabble.com. |
Date | 2007-11-12 09:16 |
From | "Oeyvind Brandtsegg" |
Subject | [Csnd] Re: Re: Re: Silence |
Attachments | None |
Date | 2007-11-12 12:41 |
From | ad80a |
Subject | [Csnd] Re: Re: Silence |
Michael Gogins wrote: > > > The new theory views chords as points in a space with one dimension per > voice > > > > Send bugs reports to this list. > To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe > csound" > > very very interesting, not only in a computer music perspective, but also in a pure compositive perspective -- View this message in context: http://www.nabble.com/silence-tf4786598.html#a13704928 Sent from the Csound - General mailing list archive at Nabble.com. |