NBC Symphony Orchestra All-Wagner Program Broadcast over NBC Radio, CBC Radio, and US Information Agency shortwave radio. This 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). symphony orchestra performance radio broadcast 1954-04-04T18:30:00