@Override
  public int hashCode() {
    return Objects.hash(
        getIsrc(),
        getReleaseReference(),
        getTitle(),
        Arrays.hashCode(getArtistReferences()),
        getDuration(),
        getExplicitType());
  }
Represents a track (eg: a song) as returned by the Google Music API.
extensions/data-transfer/portability-data-transfer-google/src/main/java/org/datatransferproject/datatransfer/google/musicModels/GoogleTrack.java