Tapek-ribbon

! tapek-ribbon.scl

!

Eq-diff ribbon extension of Superpyth, made of two Tapek sequences

12

!

1777/1656 ! C#

627/552 ! D

173/138 ! E

4273/3312 ! E+

1465/1104 ! F

131/92 ! F#

104/69 ! G

3673/2208 ! A

945/552 ! A+

243/138 ! Bb

1043/552 ! B

2/1

! Tapek -c and triple h.eq-b recurrent sequence 3x^3 = x^2 + 8

! and Superpyth temperament (generator = 710.25498677616 c.)

! completed by the arithmetical mean ribbon y = (1 + x)/2,

! equal-differential frequencies of all [7:6:5:4] tetrads

! main sequence : 243 1465 69 13 627 945 4273/3 ... (C = 69)

! major third sequence : 3673 173 1043 393 1777/3...