anchor.diff:          player.dispose();
         }
       });
  -    player.open(audio, volume: volume, seek: seek, respectSilentMode: respectSilentMode, autoStart: true, playSpeed: playSpeed);
  +    player.open(
  +      audio,
  +      volume: volume,
  +      seek: seek,
  +      respectSilentMode: respectSilentMode,
  +      autoStart: true,
  +      playSpeed: playSpeed,
  +    );
     }
   
     ReadingPlaylist get playlist {
  
positive.code:     return playlistIndex + 1 < playlist.numberOfItems;
    }
  
    _CurrentPlaylist({@required this.playlist, this.volume, this.respectSilentMode, this.showNotification, this.playSpeed});
  
    void returnToFirst() {
      playlistIndex = 0;
  
negative.code:   }
  
    void _openPlaylistCurrent() {
      _open(
        _playlist.currentAudio(),
        forcedVolume: _playlist.volume,
        respectSilentMode: _playlist.respectSilentMode,
        showNotification: _playlist.showNotification,
        playSpeed: _playlist.playSpeed,
      );
    }
  
    bool next({bool stopIfLast = false}) {
  