Fredric Myrow, director and composer of music for plays, films and orchestras and perhaps best known for his work with the Los Angeles Theater Center, died Thursday of a heart attack at his Hollywood Hills home. He was 59.

The son of film composer and lyricist Josef Myrow, who wrote “You Make Me Feel So Young,” Myrow began his career when Russian composer Dmitri Shostakovich heard Myrow’s work at USC during a tour in 1958. This brought Myrow a commission from the Young Musicians Federation. His “Symphonic Variations” was played at the Hollywood Bowl when he was 21.

He received three Fulbright awards during the next 10 years, which allowed him to study music in Italy. He also received three Rockefeller grants, as well as a Guggenheim Fellowship.

He served for a year as composer in residence under Leonard Bernstein at the New York Philharmonic and taught at the State U of New York in Buffalo before returning to Los Angeles.

He collaborated with Jim Morrison of the Doors on an unfinished rock opera, which inspired Myrow to explore popular music.

Myrow also composed scores for films such as “Leo the Last” (1969), “Soylent Green” (1973) “Scarecrow” (1973) and the cult horror film “Phantasm” (1979).

His stage musical “Sure Feels Good” at the Los Angeles Actor’s Theatre led to his joining LATC, where he produced 40 concerts and composed music for 20 plays during his four-year tenure.

Myrow also owned and operated Rashine Musicworks, a recording studio, and Axis Mundi, a production company and record label.

He is survived by his wife, Ilana, and three daughters, Rachael, Shira and Neora.

Services were to be private.