27 lines
755 B
JavaScript
27 lines
755 B
JavaScript
// takes pitches as numbers and converts them to a vector
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export const findVector = (pitches) => {
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let sorted = pitches.sort((x,y) => x - y);
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// finds each interval and logs it as a duple
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let intervalClasses = [];
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for (let i = 0; i < sorted.length; i++) {
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let j = i+1;
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// does not allow out of range values in the proceeding loop
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if (j >= sorted.length) {
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break;
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}
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do {
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let thing = (sorted[j] - sorted[i]) % 6
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if (!(intervalClasses.includes(thing))) {
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intervalClasses.push(thing);
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}
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j++;
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} while (j < sorted.length);
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}
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intervalClasses = intervalClasses.sort((x,y) => x-y);
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return intervalClasses;
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}
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