Belwin's 21st Century Guitar Ensemble -- Classical Gas

Mason Williams is a composer and performer known for his guitar work. His piece "Classical Gas" is a popular selection for guitar ensembles, featured in publications like Belwin's 21st Century Guitar Ensemble.

Bill Purse is an educator and arranger known for his contributions to guitar music. His work includes "Belwin's 21st Century Guitar Ensemble -- Classical Gas," which is used by many student musicians.

Aaron Stang writes popular guitar instruction and music transcription books. He is known for titles like The Rolling Stones Singles Collection, the Belwins 21st Century Guitar Chord Dictionary, and various 21st Century Guitar Ensemble arrangements. His works help guitarists learn and play a wide range of music.