Bach is best known for his instrumental music, especially for winds and brass.
He has also composed two operas, the second of which, The Student from Salamanca, was premiered at New York City Opera as the winner of the 1980 New York City Opera Competition.
The System, opera in one act Libretto by the composer after a story by Edgar Allan Poe. 1973, Mannes College Opera Workshop, Kaufmann Auditorium, 92nd Street YMCA, New York, New York [Winner of the Mannes College Opera Composition Competition]
The Student from Salamanca Libretto by the composer after an intermezzo by Cervantes. 1980, New York City Opera