> http://megalego.free.fr/pd/scoregame/polyrytharm.pd > > For adding spice I've also divided the octave by the number of notes in > the polyrythm.
That's really interesting, and I love the graphical output. It's very whimsical, having the animated notes that go around in circles on the score. > I've been particulary interested by your microtonal guitar, and I'm > curious if the player is able to make good sounding chords with it. > Also it's possible to play microtonal scales with an usual guitar, > with just tuning strings differently, for example by lowering the G > string about 1/4 tone, then with the ratio between the G string and the > B string, it's possible to play 24 notes scales, not in an easy way, I > admit. The guitar is not that hard to play, after all. Diatonic scales line up very well in 19-tet, but there's extra notes in between. In 12-tet you have a diatonic scale as follows: 0,2,4,5,7,9,11,12 In 19-tet, you have 0,3,6,8,11,14,17,19 so, there are notes of the chromatic scale as follows: C,C#,Db,D,D#,Eb,E,E#,F,F#,Gb,G,G#,Ab,A,A#,Bb,B,B#,C Chords based on diatonic scale line up very well in 19-tet. I can play nearly anything on the "microtonal" 19-tet scale that I could also play in 12-tet. It's advantage is in chromatic voice variation, since there are extra notes to use, and some intervals become evenly divisible. Example, a perfect 4th is 8/19th of an octave; it's divisible by 2,4, or 8 On the other hand, 19 is a prime number, so none of the intervals evenly divide the octave any more. So, diminished/augmented chords are out, despite having more variations that all sound like dim or aug chords with small variations At the moment, I have tuned the guitar from C to E, so that the frequency ratio between any two strings is an odd harmonic ratio. it goes: C, A, D#, G, B#, E (as numbers: 0,14,23,30,37,44) and the ratios between strings are: 5/3 , 7/5 , 9/7 , 9/7 , 9/7 and I have no idea what to do with it. I work on it sometimes, but I don't know how it's actually useful for anything. Chuck _______________________________________________ [email protected] mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
