! chalmers.scl ! Chalmers' 19-tone with more hexanies than Perrett's Tierce-Tone 19 ! 21/20 16/15 9/8 7/6 6/5 5/4 21/16 4/3 7/5 35/24 3/2 63/40 8/5 5/3 7/4 9/5 28/15 63/32 2/1