Marty Schwartz demonstrates a guitar trick--how to make your electric guitar sound like a light saber from Star Wars. First, he turns his volume knob all the way down. Then, he plucks the string, keeping the front side of the guitar facing away from the camera. Then, after he plucks the string, he turns the volume knob up as he waves the neck of the guitar in his hand like a light saber. The volume knob is turned down as the guitar swings to the side, and turned back up as it nears the listener. The vibrations from the string, amplified by the volume knob, gives the impression that the listener is actually hearing a light saber.