@tonaljs/interval/dist/index.js

Parse and manipulate music intervals

"use strict";
var __defProp = Object.defineProperty;
var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
var __getOwnPropNames = Object.getOwnPropertyNames;
var __hasOwnProp = Object.prototype.hasOwnProperty;
var __export = (target, all) => {
  for (var name2 in all)
    __defProp(target, name2, { get: all[name2], enumerable: true });
};
var __copyProps = (to, from, except, desc) => {
  if (from && typeof from === "object" || typeof from === "function") {
    for (let key of __getOwnPropNames(from))
      if (!__hasOwnProp.call(to, key) && key !== except)
        __defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable });
  }
  return to;
};
var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);

// index.ts
var interval_exports = {};
__export(interval_exports, {
  add: () => add,
  addTo: () => addTo,
  default: () => interval_default,
  distance: () => distance,
  fromSemitones: () => fromSemitones,
  get: () => get,
  invert: () => invert,
  name: () => name,
  names: () => names,
  num: () => num,
  quality: () => quality,
  semitones: () => semitones,
  simplify: () => simplify,
  subtract: () => subtract,
  transposeFifths: () => transposeFifths
});
module.exports = __toCommonJS(interval_exports);
var import_pitch_distance = require("@tonaljs/pitch-distance");
var import_pitch_interval = require("@tonaljs/pitch-interval");
function names() {
  return "1P 2M 3M 4P 5P 6m 7m".split(" ");
}
var get = import_pitch_interval.interval;
var name = (name2) => (0, import_pitch_interval.interval)(name2).name;
var semitones = (name2) => (0, import_pitch_interval.interval)(name2).semitones;
var quality = (name2) => (0, import_pitch_interval.interval)(name2).q;
var num = (name2) => (0, import_pitch_interval.interval)(name2).num;
function simplify(name2) {
  const i = (0, import_pitch_interval.interval)(name2);
  return i.empty ? "" : i.simple + i.q;
}
function invert(name2) {
  const i = (0, import_pitch_interval.interval)(name2);
  if (i.empty) {
    return "";
  }
  const step = (7 - i.step) % 7;
  const alt = i.type === "perfectable" ? -i.alt : -(i.alt + 1);
  return (0, import_pitch_interval.interval)({ step, alt, oct: i.oct, dir: i.dir }).name;
}
var IN = [1, 2, 2, 3, 3, 4, 5, 5, 6, 6, 7, 7];
var IQ = "P m M m M P d P m M m M".split(" ");
function fromSemitones(semitones2) {
  const d = semitones2 < 0 ? -1 : 1;
  const n = Math.abs(semitones2);
  const c = n % 12;
  const o = Math.floor(n / 12);
  return d * (IN[c] + 7 * o) + IQ[c];
}
var distance = import_pitch_distance.distance;
var add = combinator((a, b) => [a[0] + b[0], a[1] + b[1]]);
var addTo = (interval) => (other) => add(interval, other);
var subtract = combinator((a, b) => [a[0] - b[0], a[1] - b[1]]);
function transposeFifths(interval, fifths) {
  const ivl = get(interval);
  if (ivl.empty) return "";
  const [nFifths, nOcts, dir] = ivl.coord;
  return (0, import_pitch_interval.coordToInterval)([nFifths + fifths, nOcts, dir]).name;
}
var interval_default = {
  names,
  get,
  name,
  num,
  semitones,
  quality,
  fromSemitones,
  distance,
  invert,
  simplify,
  add,
  addTo,
  subtract,
  transposeFifths
};
function combinator(fn) {
  return (a, b) => {
    const coordA = (0, import_pitch_interval.interval)(a).coord;
    const coordB = (0, import_pitch_interval.interval)(b).coord;
    if (coordA && coordB) {
      const coord = fn(coordA, coordB);
      return (0, import_pitch_interval.coordToInterval)(coord).name;
    }
  };
}
// Annotate the CommonJS export names for ESM import in node:
0 && (module.exports = {
  add,
  addTo,
  distance,
  fromSemitones,
  get,
  invert,
  name,
  names,
  num,
  quality,
  semitones,
  simplify,
  subtract,
  transposeFifths
});
//# sourceMappingURL=index.js.map