Safe Haskell | Safe-Inferred |
---|---|
Language | Haskell2010 |
Larry Polansky. "Psaltery (for Lou Harrison)". Frog Peak Music, 1978.
Synopsis
- psaltery_r :: [Rational]
- psaltery_o_r :: [Rational]
- psaltery_o :: Tuning
Documentation
psaltery_r :: [Rational] Source #
Three interlocking harmonic series on 1:5:3, by Larry Polansky in "Psaltery".
import qualified Music.Theory.Tuning.Scala as T scl <- T.scl_load "polansky_ps" T.pitch_representations (T.scale_pitches scl) == (0,50) 1 : Data.Either.rights (T.scale_pitches scl) == psaltery_r
psaltery_o_r :: [Rational] Source #
fold_ratio_to_octave'
of psaltery
.
length psaltery_r == 51 && length psaltery_o_r == 21
psaltery_o_r == [1,65/64,33/32,17/16,35/32,9/8,75/64,39/32 ,5/4,21/16,85/64,11/8,45/32 ,3/2,25/16,51/32,13/8,27/16,55/32,7/4,15/8]
psaltery_o :: Tuning Source #
Tuning
derived from psaltery_o
with octave_ratio
of 2
.
cents_i psaltery_o == [0,27,53,105,155,204,275,342,386,471,491,551,590
,702,773,807,841,906,938,969,1088]
let r = [0,1200,1902,2400,2786,3102,3369,3600,3804,3986,4151,4302,4441,4569,4688,4800,4905
,386,1586,2288,2786,3173,3488,3755,3986,4190,4373,4538,4688,4827,4955,5075,5186,5291 ,702,1902,2604,3102,3488,3804,4071,4302,4506,4688,4853,5004,5142,5271,5390,5502] > in cents_i (T.scale_tuning 0.01 scl) == r