Solfeggio by Carl Philipp Emanuel Bach

[youtube https://www.youtube.com/watch?v=9SXC744mPz8?rel=0&w=600&h=340]

Or Solfeggietto
On the sampled harpsichord:

http://www.sonusparadisi.cz/en/organs/early-and-small-instruments/cembalo-ruckers-model.html

ernst stolz