"radio broadcast" . "1954-04-04T18:30:00"^^ . . "symphony orchestra performance" . . . "All-Wagner Program\r\nBroadcast over NBC Radio, CBC Radio, and US Information Agency shortwave radio.\r\nThis was Arturo Toscanini's last concert appearance in Carnegie Hall (he returned once more on 6/3 and 6/4/54 to re-record passages from broadcast performances of Verdi's Aida and Un Ballo in Maschera).\r\n" . . . . . . . . . . . "NBC Symphony Orchestra" .