There is a delightful recording from September 19, 1929, which features both Harold Bauer and Ossip Gabrilowitsch in a duo-recital. The recorded sound is dated, this is a selection that belongs in any serious collection. It is a nostalgic return to the sounds elicited by giants of the Nineteenth Century. I found copies here: http://www.amazon.com/Ossip-Gabrilowitsch-Anton-Arensky/dp/B000003LIR.
