text: //
  //  PFInstrument.h
  //  Polyform
  //
  //  Created by Warren Whipple on 1/18/13.
  //  Copyright (c) 2013 Warren Whipple. All rights reserved.
  //
  
  #import "ObjectAL.h"
  
  @interface PFInstrument : NSObject
  
  - (id)initWithSoundFile:(NSString*)soundFile
          loopFrameLength:(int)loopFrameLength;
  
  - (void)willEnterStageWithChannel:(ALChannelSource*)channel;
  
  - (ALChannelSource*)willExitStageReturnChannel;
  
  - (void)updateWithLoopFrameCount:(int)loopFrameCount
                            volume:(float)volume;
  
  @end
  