Beethoven - Große Fuge, Op. 134 (performed on an 1830 fortepiano)

Beethoven's own 1826 arrangement of his Große Fuge for four-hand piano, performed by Cullan Bryant and Dmitry Rachmanov on a fortepiano built by Johann Nepomuk Tröndlin in 1830. More about the piano here: http://www.frederickcollection.org/Trondlin.html