In 1946, he played the role of a band leader in a short B-grade film, Stars on Parade. About this time, his relationship with Dorothy Dandridge helped bring her success in a nightclub singing career. Moore served as vocal coach for other performers in Hollywood, including Marilyn Monroe.
During the late 1940s Moore toured with his group, the Phil Moore Four (Marty Wilson, Jimmy Lyons, Milt Hinton, and Johnny Letman). From the late 1950s until his death, he was active in teaching singing and stagecraft, and gained a wide reputation in the grooming and coaching of aspiring black and white singers; he started a school in New York named "For Singers Only".
In 1953, he recorded two bebop Christmas songs for RCA Victor: "Blink Before Christmas" and "Chinchy Old Scrooge". Created in the heyday of the "beat" era, these songs were thick with 1950s hipster lingo, in the style of jazz-based pre–rap songs. This recording has become a rare collector's item.
Moore's recordings include:
Eventide (Discovery DL 3005, 1949)
Music for Moderns (Clef MGC 635, recorded 1947, released early 1950s)
Fantasy for Girl and Orchestra (Verve MGV 2005, recorded 1947, released 1956)