Tamsen Beseke has performed and recorded with popular artists like Ray Charles, Diane Schuur, George Benson, Barry White, Doc Severenson, James Galway, Roger Williams and Bobby Vinton. She has been concertmaster of the Crystal Cathedral Orchestra, LA Master Chorale and West Coast Symphony. She has been principal second violin with the Glendale Symphony since 1991. She is first violinist for the Avanti String Quartet. She invented the violin and viola shoulder rest, "Acoustifoam."