code: function _buildSound(soundDescriptor) {
  		descriptor = soundDescriptor;
  		this.service = soundDescriptor.service;
  		this.url = soundDescriptor.url;
  		this.title = soundDescriptor.title;
  		this.artist = soundDescriptor.artist;
  		this.cover = soundDescriptor.cover;
  		this.artistCover = soundDescriptor.artistCover;
  		this.soundCover = soundDescriptor.soundCover;
  		this.waveFormImage = soundDescriptor.waveFormImage;
  		this.link = soundDescriptor.link;
  		this.appData = soundDescriptor.appData;
  	}
docs: Private methods LOOK AWAY! Use to on this interface with Urturn API