@Override
    public int hashCode() {
        int result = idTrack;
        result = 31 * result + (name != null ? name.hashCode() : 0);
        result = 31 * result + (filePath != null ? filePath.hashCode() : 0);
        result = 31 * result + (price != null ? price.hashCode() : 0);
        result = 31 * result + (duration != null ? duration.hashCode() : 0);
        result = 31 * result + (description != null ? description.hashCode() : 0);
        return result;
    }