The student's piece was called JACKHAMMER. For solo electric guitar. It was, in a word, loud. After studying the score, listening to the piece once (with ear protection), and then studying the score a second time, Gordon Mumma made a suggestion: "Why not write a piece for solo jackhammer and title it ELECTRIC GUITAR?"
The lesson I gathered from Prof. Mumma: take a tired idea, turn it over, and see if it still has some more life in it.