. . . "1949-11-24T20:45:00"^^ . . . . "New York Philharmonic" . "WORLD PREMIERE of Carl Ruggles' ORGANUM\r\nU.S. PREMIERE of Sergei Prokofiev's SYMPHONY NO. 6 IN E-FLAT MINOR, OP. 111\r\nNEW YORK PREMIERE of Benjamin Britten's PIANO CONCERTO NO. 1 IN D MAJOR, OP. 13" . . "symphony orchestra performance" . . .