"National Orchestral Association" . . . . "1967-04-18T20:30:00"^^ . . . "WORLD PREMIERE of Alvin Etler's CONCERTO FOR BRASS QUINTET, STRINGS AND PERCUSSION\r\nNEW YORK PREMIERE of Charles Wuorinen's CONCERTONE FOR BRASS QUINTET AND ORCHESTRA" . . "symphony orchestra performance" . . . . . .