Glass was formerly the drummer for the punk rock band Olivelawn, as well as a guitarist of Fu Manchu.

Nebula has been Glass' primary musical group since 1997, when he and drummer Ruben Romano left Fu Manchu.

[1] Though currently known as a guitarist, Glass first gained recognition as the drummer in California punk band Olivelawn.

[2] Glass is the founder, lead guitarist, vocalist, and primary songwriter for Nebula, and previously acted in a similar capacity (minus the vocal duties) in Fu Manchu.

Glass started playing with Hagop Najarian and Neil Blender in the mid 1980s as teenagers in southern California, and the trio formed Worked World.