! 420_D9.scl
!
Diatonic tetrachord 81/77 * 77/69 * 92/81
 3
!
 81/77
 27/23
 4/3
!
! John H. Chalmers, Jr., Divisions of the Tetrachord.
! Frog Peak Music, 1993.
!
! [info]
! source = Divisions of the Tetrachord
! catalog_index = 420