mightyscape-1.2/extensions/fablabchemnitz/fret_ruler/scales/dudon_soria.scl

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! 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.