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This is a work in progress...
After a long hiatus, I've been able to crank out 60 seconds of music. This one takes a chord of the overtone series 4:5:6:7:9:11 and slides it up and down to the same notes. 4 goes to 9 or 7, 7 goes to 4 or 6. Each note glides to it's nearest overtone, up or down. There's a finger piano arpeggio that just moves up and down a 53-TET interval while playing on the 4:5:6:7:9:11 notes. They start in synch, drift out and back twice in a minute. Scored for finger piano, tuba, trombone, flute, french horn in Csound.