Until his recent retirement, Don Ehrlich was assistant principal viola in the San Francisco Symphony. He received a B.M. from the Oberlin Conservatory, a M.M. from the Manhattan School of Music, and a D.M.A from the University of Michigan. He has been a member of the Aurora and Stanford String Quartets and is principal viola of the Mendocino Music Festival. Mr. Ehrlich plays an ergonomically corrected Pellegrina model viola designed and made by David Rivinus of Portland, Oregon. His recording of the six suites by Bach, originally for cello, was recently released and is available at the Symphony Store or online at shopsfsymphony.org.