Claude's first professional gig was in 1933 with the Joe Rivet Band. Claude played saxophone, clarinet, trumpet & violin.
In 1934, Claude joined the Orin Tucker Band and later joined Ben Young's band where he met Tex Beneke. In 1936 Claude and Tex Beneke joined the Glenn Miller Band.
In 1938, while playing with Glenn Miller, Claude met Harry James who was then playing with Benny Goodman. It was at this time that Harry James started his original band and asked Claude to join playing the jazz tenor book.