According to Allmusic, Mort Garson boasts one of the most distinctive and outright bizarre resumés in popular music, spanning from easy listening to occult-influenced space-age electronic pop.

He also arranged for the Lettermen on Capitol Records, provided background to Laurence Harvey reading poetry on Atlantic Records, and provided arrangements for Esther Phillips, Julie London, Nancy Wilson, Chris Montez, Leslie Uggams, Joanie Sommers, Paul Revere and the Raiders, and many others.

[7][8] He was a favorite of producers when the job involved soft pop vocal groups and string ensembles, and was responsible for a wide variety of easy listening records, including Bossa Nova for All Ages by the Continentals, Symphony for the Soul by the Total Eclipse, and Sea Drift by the Dusk 'Til Dawn Orchestra.

Another album, The Wozard of Iz, a psychedelic satire based on The Wizard of Oz, also with words by Jacques Wilson, featured Bernie Krause providing environmental sound effects and Suzie Jane Hokom voicing Dorothy.

[2] Garson was quoted at the time: "An electronic composer utilizes synthesizer as a means of expression… Of course he must remain master of the instrument and not vice versa, but given the unique vehicle, he has the medium in which, almost literally, the sky's the limit for his imagination.

In 1971, he composed an entirely instrumental electronic Black Mass album, released on Uni Records under the pseudonym Lucifer, that again featured the Moog.

In 1974, he composed the electronic music score for the 18th Annual Grammy Award-winning Best Children's Recording of The Little Prince narrated by Richard Burton.

He said:[8] "The only sounds that go along with space travel are electronic ones.… The Apollo film shows different facets of the flight—blast-off, separation of the stages of the rocket, scenes of the moon at close range, of the astronauts playing games in the ship, and of earth rise.

So I used a big, symphonic sound for the blast-off, some jazzy things for the zero-G game of catch, psychedelic music for a section that uses negatives and diffuse colors on shots taken inside the ship, and a pretty melody for the moon.

He also scored the 1974 Fred Williamson film Black Eye, and adapted the music for Mel Brooks' and Carl Reiner's 1975 animated television special The 2000 Year Old Man.

a musical with book and lyrics by Buddy Kaye that had its world premiere 15 October 2010 at the Long Beach Performing Arts Center, International City Theatre.

[19][20] A sample from Garson's "Planetary Motivations (Cancer)" was incorporated into DJ Shadow's 1996 song "Building Steam with a Grain of Salt," from the album Endtroducing......

In the 1994 Peter Lynch short film Arrowhead, Ray Bud (played by Don McKellar) manipulates a dead fish while singing Mort Garson's closing theme of the 1970s Canadian nature program Untamed World.

"Deja Vu" was used as the main theme for most of "Balance", the first arc of the Maximum Fun podcast The Adventure Zone, with "The Unexplained," "Astral Projection," "Cabala," "Wind Dance," "Tarot," and "Music to Soothe the Savage Snake Plant" also being used later on the series as an alternate theme and as background music, respectively, along with a cover version of "Plantasia," arranged by Griffin McElroy.