Ifbis

! ifbis.scl
!
Ifbis -c  12 tones sequence (not traditional)
12
!
61/56
8/7
17/14
9/7
75/56
10/7
3/2
11/7
93/56
7/4
13/7
2/1
! Ifbis neutral third recurrent sequence  x^5 - x^3 = 1  Dudon 2002
! series 9 11 14 17 21 26 32 40 49 61 75 93 115 142 176
! (closes here in a 13 tones/octave scale between 11 and 176)
! TL 19/11/2009