The National Symphony Orchestra announces auditions for PRINCIPAL TROMBONE ASSISTANT PRINCIPAL TROMBONE Positions will be available September 2009, or possibly sooner. Application Deadline: October 15, 2008 Auditions for both positions: January 10, 11 & 12, 2009 Application Procedure: Send a one-page resume to: National Symphony Orchestra John F. Kennedy Center P.O. Box 101510 Arlington, VA. [...]