Gass has been the recipient of grants from the National Endowment for the Arts, Meet the Composer, and the Indiana Arts Commission. Recordings of his works are available on the CRI, Opus One, Master Musicians and Enharmonic labels. He is the author of A History of Rock Music: The Rock & Roll Era, a 1994 publication by McGraw-Hill, and a member of the Education Advisory Board of the Rock & Roll Hall of Fame and Museum in Cleveland.