Jay Greenberg has been compared to Mozart, Mendelssohn, and Saint-Saens. He's composed five symphonies. He composes as he goes about his life, and transfers it to musical notation when he gets to his computer. Sometimes he's even multi-tasking with multiple pieces of music at once. He's written pieces in less than an hour that major symphonies will perform. He's been at Juilliard for a couple years and expects to finish in a couple more. Oh, and he's 12.