[Nick Zwar]

Denny Zeitlin’s INVASION OF THE BODY SNATCHERS
Perfectly fits the description of someone who “dabbled” in film music. His “dayjob” is as a widely respected professor of clinical psychiatry, and his “nightjob” is as a composer of modern and experimental jazz and performer of piano and various keyboards/synthesizers.
He “dabbled” in film music by writing one of the best science-fiction scores of the 70s, for Philip Kaufman’s INVASION OF THE BODY SNATCHERS (which I love, both score and film), but turned down subsequent offers to score more movies… maybe because he didn’t have time for a third career. 🙂

Apart from Leonard Bernstein (who wrote only one film score), perhaps also John Corigliano, who wrote less than five film scores, and is mostly know for his classical works?