American Youth Philharmonic Orchestras
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The American Youth Philharmonic Orchestras (AYPO) is group of orchestras formerly known as Northern Virginia Youth Symphony Association. Comprised of two full orchestras (the American Youth Philharmonic [AYP] and the American Youth Symphonic Orchestra [AYSO]), a training orchestra (the American Youth Concert Orchestra [AYCO]), a string orchestra (the American Youth String Ensemble [AYSE]) and several chamber groups. AYPO has been lead for many years by music director Luis Haza, a violinist in the National Symphony Orchestra. AYPO is the official youth orchestra in residence of George Mason University.