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.
Armenian Philharmonic Orchestra
The Armenian National Philharmonic Orchestra ("ANPO") (Armenian: Հայաստանի ազգային ֆիլհարմոնիկ նվագախումբ) is the national orchestra of Armenia. It was founded in 1925 as a symphony orchestra of the Yerevan State Conservatory. Now it performs in Khachaturian Hall, Yerevan.