                 tagString += "#\(tag) "
             }
         }
-        /*
-        if tune != nil {
-            if let collaborator = tune.getOriginators().1 {
-                if let username = collaborator.objectForKey("username") as? String {
-                    if tagString.characters.count > 0 {
-                        tagString += "\n\n" //TODO: this is a hack
-                    }
-                    tagString += "\(username) contributed new audio"
-                }
-                
-            }
-        }
-        */
+
         return tagString
     }
     

    }
    
    @IBAction func playTapped(sender: AnyObject) {
        if (playing) {
            audioPlayer?.pause()
            playing = false

        if let waveformImageUrl = composition.waveformImageUrl {
            waveFormView.setImageURLWithFade(waveformImageUrl, alpha: 0.25, completion: nil)
        }
        
        audioPlayer = nil
        audioItem = nil
        playing = false
        playButton.selected = false
        NSNotificationCenter.defaultCenter().removeObserver(self)
        
    }
    
