Vladimir Horowitz, Piano The second half of the program (Mussorgsky's "Pictures at an Exhibition," beginning at 10:05 PM) was broadcast on WQXR. "Horowitz Recital On Radio Tonight." New York Times (1923-Current file): 32. Apr 23 1951. ProQuest. Web. 13 Dec. 2013. solo recital radio broadcast 1951-04-23T20:30:00