     "0919 F R": "0919_F_R",
   ]
   var toneKeys: Array<String> = []
-  var toneDir: String!
+  var toneDir: NSString!
   
   // # Effect Section
   

        }
      }
      else {
        NSLog("ONE SHOT")
        setTonePlayerType(PlayerType.OneShot)
        
        for i in 1..<SLIT_COUNT+1 {
          let num = NSString(format: "%02d", i)
          let url = NSBundle.mainBundle().pathForResource("tones/\(toneDir!)/\(num)", ofType: "wav")!
          NSLog("\(url)")
          let audioFile = AVAudioFile(forReading: NSURL(fileURLWithPath: url), error: nil)
          audioFiles += [audioFile]
          if format == nil {
            format = audioFile.processingFormat
          }
        }
      }

      engine.connect(player, to: mixer, format: format)
      longShotPlayers += [player]
    }

    engine.connect(mixer, to: eq, format: format)
    engine.connect(eq, to: delay, format: format)
