Here's my most of:
Prelude 1 by Gershwin, to complete this set.
You can tell that the Spanish Prelude, above, was evolved from the MIDI. It's been awhile and I'm not sure about the roots of this nugget. Prelude II by Gershwin was what I evolved from the sheet music. It still has some special syncopations, but is straight from the printed page. If I find a special Gershwin clip of music, I'll try and share it here.
-- Michael --<center><table border=1><tr><td>Prelude I
Prelude 1.mid (6.7 k)</td></tr></table></center><center><table border=1><tr><td>Prelude 1
Prelude 1.not (73.5 k)</td></tr></table></center>