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import Intonation from './intonation'
const meantone = `! meanquar.scl
!
1/4-comma meantone scale. Pietro Aaron's temperament (1523)
12
!
76.04900
193.15686
310.26471
5/4
503.42157
579.47057
696.57843
25/16
889.73529
1006.84314
1082.89214
2/1
`
const mavila = `! mavila12.scl
!
A 12-note mavila scale (for warping meantone-based music), 5-limit TOP
12
!
-30.99719
163.50770
358.01258
327.01540
521.52028
490.52310
685.02798
654.03080
848.53568
1043.04057
1012.04338
1206.54826
`
const carlos_alpha = `! carlos_alpha.scl
!
Wendy Carlos' Alpha scale with perfect fifth divided in nine
18
!
78.00000
156.00000
234.00000
312.00000
390.00000
468.00000
546.00000
624.00000
702.00000
780.00000
858.00000
936.00000
1014.00000
1092.00000
1170.00000
1248.00000
1326.00000
1404.00000
`
const lamonte = `! young-lm_piano.scl
!
LaMonte Young's Well-Tempered Piano
12
!
567/512
9/8
147/128
21/16
1323/1024
189/128
3/2
49/32
7/4
441/256
63/32
2/1
`
const scales = [
{
intervals: '1/1 9/8 5/4 4/3 3/2 5/3 15/8 2/1',
name: "harmonic scale",
},
{
root: 450,
intervals: '1/1 9/8 5/4 4/3 3/2 5/3 15/8 2/1',
name: "harmonic scale @ 450",
},
{
tet: 5,
},
{
tet: 12,
},
{
tet: 17,
},
{
intervals: '1/1 81/80 33/32 21/20 16/15 12/11 11/10 10/9 9/8 8/7 7/6 32/27 6/5 11/9 5/4 14/11 9/7 21/16 4/3 27/20 11/8 7/5 10/7 16/11 40/27 3/2 32/21 14/9 11/7 8/5 18/11 5/3 27/16 12/7 7/4 16/9 9/5 20/11 11/6 15/8 40/21 64/33 160/81 2/1',
name: "harry partch scale",
},
{
scl: lamonte,
},
{
scl: meantone,
},
{
scl: mavila,
},
{
scl: carlos_alpha,
},
].map( (opt) => new Intonation(opt) )
let scale = scales[0]
let handleChange = function(){}
function build () {
scales.forEach( (scale, i) => {
scale.heading = document.createElement('div')
scale.heading.innerHTML = scale.name
scale.heading.classList.add('heading')
scale.heading.addEventListener('click', function(){
pick(i)
})
scale_list.appendChild(scale.heading)
})
pick(0)
}
function pick (i) {
if (scale) {
scale.heading && scale.heading.classList.remove('selected')
}
scale = scales[i]
scale.heading && scale.heading.classList.add('selected')
handleChange(scale)
}
function current () {
return scale
}
function onChange (fn) {
handleChange = fn
}
function names () {
return scales.map( scale => scale.name )
}
export default { scales, current, build, pick, names, onChange }
|
