はてなブックマーク

// by intervals var c = Note.fromLatin('C4'); var cmaj = c.add(['unison','major third','fifth']); // or by note names var cmaj = Note.fromLatin('C4E4G4'); // then loop through chord array for each note object for (var i = 0; i < cmaj.length; i++) { console.log(cmaj[i].frequency()); }