lib/chord.js
function (interval) {
    return _.find(notes, function (n) {
      return root.transpose(interval).enharmonic(n);
    });
  }
function (interval) {
    return _.find(notes, function (n) {
      return root.transpose(interval).enharmonic(n);
    });
  }
function ( interval ) { return _ . find ( notes , function ( n ) { return root . transpose ( interval ) . enharmonic ( n ) ; } ) ; }
Return true if interval is present in this chord
Return true if interval is present in this chord