To those interested in a MIDI file derived from the piano itself, there is this, from http://www.opengoldbergvariations.org/node/157 http://www.opengoldbergvari

To those interested in a MIDI file derived from the piano itself, there is this, from http://www.opengoldbergvariations.org/node/157 http://www.opengoldbergvariations.org/node/157: "CEUS is a system that allows suitably equipped pianos to faithfully record and reproduce real, live performances by playing the recording back on the piano exactly as played. Every detail, from the velocity of the key stroke to timing and pedaling is reproduced as in the original performance. The CEUS recording of the Goldberg Variations will also be released to the public domain." It might not be too much of a stretch to devolve the CEUS data into MIDI.