! tri19-4.scl ! 4:5:9 Tritriadic 19-Tone Matrix 19 ! 81/80 10/9 9/8 100/81 5/4 81/64 32/25 25/18 45/32 64/45 36/25 25/16 128/81 8/5 81/50 16/9 9/5 160/81 2/1