1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
! thirds.scl ! Major and minor thirds parallellogram. Fokker block 81/80 128/125 12 ! 25/24 10/9 6/5 5/4 4/3 25/18 3/2 8/5 5/3 125/72 48/25 2/1