In his youth, John Philip Sousa, the grandson of America's great composer and conductor by the same name, received large sums of money as a guest bandleader. Soon, however, his conscience began to trouble him. He knew that he was asked to conduct because of his famous ancestor, not due to his own ability. In fact, the younger Sousa couldn't read a note of music. So he decided to give up his lucrative charade and start earning a real living.