National Symphony Orchestra
The National Symphony Orchestra (NSO), founded in 1931, is an American symphony orchestra based in Washington, D.C.. Its principal performing venue is the John F. Kennedy Center for the Performing Arts.
Sidney Sax
The National Philharmonic Orchestra, which was later incorporated in 1970, was a freelance orchestra that boasted amongst its players some of the leading musicians from all the London orchestras. It was not unusual to find that Sax had contracted the leaders of most of London's orchestras to populate his first violin section.