Here is an absolutely stellar performance of Beethoven’s Concerto No. 5, in E-flat Major, Op. 73 (“Emperor”), by the London Philharmonic Orchestra, conducted by George Szell, featuring Benno Moiseivitch on piano. The audio quality is superb, especially when you consider this was recorded in 1938 and only much later transferred to a digital medium. Here are all three movements, in two high resolution mp3s. Magnificent.