If Hogwarts had a school band, it might look and sound a wee bit like Harry and the Potters. Started as a joke three years ago, the Norwood, Mass.-based rock group consisting of Paul DeGeorge, 26, and brother Joe, 18 has self-released two albums of punkish, Potter-inspired songs and is currently touring some of the country's finer bookstores, doughnut shops, and hot dog jamborees. ''Our biggest goal was to play a show at the Boston Public Library, but we accomplished that within two months of forming the band,'' says Paul, who's presently fine-tuning a song about Hogwarts headmaster Dumbledore, based on J.K. Rowling's new best-seller, Harry Potter and the Half-Blood Prince. (Other high-demand songs include ''Save Ginny Weasley'' and ''The Wrath of Hermione.'') ''This is going to be the toughest book yet to write songs for,'' says Paul, a guitarist and classically trained pianist, ''because we try to make our songs fun and there's nothing fun about book 6.''
Finding a rhyme for horcrux is difficult enough. A tougher challenge for the DeGeorges will be keeping in touch this fall, when Joe starts at Clark University in Worcester, Mass., as a freshman while Paul begins a Ph.D. program in cellular biology at the University of Massachusetts Medical School. But like their literary alter ego, the brothers have faith. ''At this point, we're just waiting for the next crazy offer,'' says Paul. ''If someone wants us to play at a bowling alley, we're so there!''