Soria

! soria.scl
!
12 from a 17-notes cycle, equal-beating extended fifths (705.57 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  (fourths of 494.4315 c.), Dudon 2008
! equal-beating of fourths, septimal minor thirds and harmonic sevenths :
! 3x^3 - 7 = 8(4 - 3x)
! also, differential coherence of 13/8 with the eq-b fourth (approx. 640/481)