In 1951, WQXR gave the first-ever radio broadcast of a Carnegie Hall recital by the piano giant Vladimir Horowitz. It was a sold-out concert, with stage seating added to accommodate a few additional fans. The announcer rightly notes that this was broadcast on the "rural radio FM network" and "Mr. Horowitz’s performance renders a great service to the public."

The broadcast only encompasses the concert's second half, which features Mussorgsky’s Pictures at an Exhibition (in Horowitz’s own arrangement) plus encores including his own "Stars and Stripes Forever."