I have been working on an ambitious project since September: play my absolute favorite Scarlatti sonata K. 386 on the chapman stick. The problem was, the piece is already sufficiently difficult on the harpsichord and playing it on the stick would require a lot of time and effort.
Nonetheless, I stopped all other music projects I was working on and began arranging the piece for the stick; it took about 3 months I think to play it OK at a very slow tempo. January onwards I began stepping up the tempo to be able to play it OK at its presto tempo.
The final product is this video we shot at the Princeton University Chapel.