! dudon_soria.scl
!
12 from a 17-notes cycle, equal-beating extended fifths (705.5685 c.) sequence
 12
!
 481/445
 4011/3560
 2067/1780
 1133/890
 9503/7120
 128/89
 533/356
 723/445
 754/445
 1233/712
 1703/890
 2/1
! Airos recurrent sequence  x^3 = 13 - 8x, Dudon 2008
! Eq-b of fourths, and septimal minor thirds with harmonic 7ths :
! 8(4 - 3x)  =  3x^3 - 7  =  (32x^3 - 56x)/13   
! Airos fourths of 494.4315 c. (approx. 640/481),
! cycle here starting from the neutral sixth (A-koron = 723/445)
! -c with the 13th harmonic : (13 * 890) - 9503 = 2067, etc.
