code: public void setCurrentMusicVolume(float volume) {
  		if (volume < 0) {
  			volume = 0;
  		}
  		if (volume > 1) {
  			volume = 1;
  		}
  		
  		if (soundWorks) {
  			lastCurrentMusicVolume = volume;
  			AL10.alSourcef(sources.get(0), AL10.AL_GAIN, lastCurrentMusicVolume * musicVolume); 
  		}
  	}
docs: Set the music volume of the current playing music. Does NOT affect the global volume
  
  @param volume The volume for the current playing music