Q: Where can I get the sheet music for this piece? A: Sheet music for this can be found here: http://www.musanim.com/pdf/ScarlattiK... This is from the Longo edition, I think; I recommend the Fadini "critical" edition (published by Ricordi; expensive, but worth it).
Q: How and when did you make this rendition? A: I made this rendition in the early days of MIDI (1980s, I think), by laying down left hand and right hand tracks individually, not in real time.
Q: Is there a way I could make the bar-graph scores myself? A: The Music Animation Machine MIDI file player will generate this display; you can get the (Windows) software here: http://www.musanim.com/player/ There are lots of places on the web where you can get MIDI files; I usually go to the Classical Archives site first: http://www.classicalarchives.com/
Q: The audio/video isn't very good; can I get the original? A: Yes, you can get it here (you have to sign up, but then you can download it): http://www.vimeo.com/51987 Incidentally, this video can be played on a video iPod. .