@tonaljs/progression/dist/index.js

Build musical chord progressions

"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 name in all)
    __defProp(target, name, { get: all[name], 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 progression_exports = {};
__export(progression_exports, {
  default: () => progression_default,
  fromRomanNumerals: () => fromRomanNumerals,
  toRomanNumerals: () => toRomanNumerals
});
module.exports = __toCommonJS(progression_exports);
var import_chord = require("@tonaljs/chord");
var import_pitch_distance = require("@tonaljs/pitch-distance");
var import_pitch_interval = require("@tonaljs/pitch-interval");
var import_roman_numeral = require("@tonaljs/roman-numeral");
function fromRomanNumerals(tonic, chords) {
  const romanNumerals = chords.map(import_roman_numeral.get);
  return romanNumerals.map(
    (rn) => (0, import_pitch_distance.transpose)(tonic, (0, import_pitch_interval.interval)(rn)) + rn.chordType
  );
}
function toRomanNumerals(tonic, chords) {
  return chords.map((chord) => {
    const [note, chordType] = (0, import_chord.tokenize)(chord);
    const intervalName = (0, import_pitch_distance.distance)(tonic, note);
    const roman = (0, import_roman_numeral.get)((0, import_pitch_interval.interval)(intervalName));
    return roman.name + chordType;
  });
}
var progression_default = { fromRomanNumerals, toRomanNumerals };
// Annotate the CommonJS export names for ESM import in node:
0 && (module.exports = {
  fromRomanNumerals,
  toRomanNumerals
});
//# sourceMappingURL=index.js.map