     
     switch playerTypeSegment.selectedSegmentIndex {
     case 0:
-      // Music Box
+      // OneShot
       let passed_index = self.getSlitIndexInRange(self.prevDeg, current: current_deg)
       if 0 < passed_index.count {
         for slit_index in passed_index {

      let audioFileBuffer = AVAudioPCMBuffer(PCMFormat: audioFile.processingFormat, frameCapacity: UInt32(audioFile.length))
      audioFile.readIntoBuffer(audioFileBuffer, error: nil)
      
      samplerPlayer.volume = 0.0
      samplerPlayer.play()
      samplerPlayer.scheduleBuffer(audioFileBuffer, atTime: nil, options:.Loops, completionHandler: nil)
      
    default:
      NSLog("Error")

      
      engine.connect(player, to: mixer, format: format)
      
      oneShotPlayers += [player]
    }
    
    // playerにオーディオファイルを設定
    
    longShotPlayer = AVAudioPlayerNode()
    longShotPlayer.volume = 0.0
    engine.attachNode(longShotPlayer)
    engine.connect(longShotPlayer, to: mixer, format: format)

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