JulioHerrlein Posted January 3 Share Posted January 3 Dear Friends, I was revisiting some 12-tone theory today and I found something strange: This returns NIL (twelve-tonep '(c3 eb3 d3 f3 e3 g3 fs3 a3 gs3 b3 bb3 cs4)) but this returns TRUE (twelve-tonep '(c4 eb4 d4 f4 e4 g4 fs4 a4 gs4 b4 bb4 cs4)) It´s the SAME tone-row NIL for this (twelve-tonep (pitch-transpose -12 '(c4 eb4 d4 f4 e4 g4 fs4 a4 gs4 b4 bb4 cs4))) TRUE for this (twelve-tonep (pitch-transpose 0 '(c4 eb4 d4 f4 e4 g4 fs4 a4 gs4 b4 bb4 cs4))) Maybe the algorithm to find the row is based in the c4 octave... I don´t know... Best Quote Link to comment Share on other sites More sharing options...
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