. "Ponce's \"Chapultapec\" is not identified as a premiere in the program, but according to the New York Times, the work \"was heard for the first time here\" on this performance.\r\nDownes, Olin. \"STOKOWSKI GIVES AMERICAN WORKS.\" New York Times (1923-Current file), Nov 21, 1934, pp. 22.\r\nNEW YORK PREMIERE of Manuel Ponce's CHAPULTAPEC\r\nNEW YORK PREMIERE of William Levi Dawson's NEGRO FOLK SYMPHONY" . . . . "symphony orchestra performance" . . . . . . "The Philadelphia Orchestra" . "1934-11-20T20:45:00"^^ . .