Possible Clues:

• "Composer" of "Fanfare for the Common Cold"
• Ostensible composer of 'The Abduction of Figaro' and 'Oedipus Tex'
• "Composer" of "Classical Rap"
• Pseudonym of musician Peter Schickele
• Composer of 'Oedipus Tex' and 'A Little Nightmare Music'