After serving as the musical director for several productions at the Rubicon Theatre in Ventura, California and elsewhere, he made his Los Angeles theatrical debut at the Mark Taper Forum, with the pre-Broadway revival of Flower Drum Song, in 2001.

[28] Crayon also served as the musical director, performing with the Upright Cabaret band, for the west coast debut of composers Kait Kerrigan and Bree Lowdermilk songs, which featured performers Sarah Hyland, Melissa Benoist, Barrett Foa, Max Ehrich, Dezmond Meeks, Meghann Fahy, Laura Dickinson, Matt Sax, Morgan Karr, Arielle Jacobs, Colleen Ballinger and others.

[30] In 1998, he served as the composer for an original children's theatre production of Rapunzel, based on the German fairy tale, which was successfully performed in repertory.

[33] He served as an orchestrator on the original cast recording of the musical, Bubble Boy, by the writing team of Cinco Paul and Ken Daurio.

A 2010 production of this musical at the International City Theatre in Long Beach, also garnered Crayon a Los Angeles Drama Critics Circle Award nomination.