[2] Mollicone is known for his one-act operas, including Emperor Norton, Starbird, and The Mask of Evil.

One of his most popular works is the one-act chamber opera The Face on the Barroom Floor.

[3] Mollicone also composed three full-length operas: Coyote Tales, Hotel Eden, and Gabriel's Daughter.

In addition, he wrote works for both television and film including The Premonition (1976), as well as pieces for voice, ballet, chorus and other various chamber combinations.

As a former faculty member of the Santa Clara University Department of Music, Henry Mollicone also acted as an instructor, adjudicator and collaborator.