Domenico Scarlatti

Scarlatti (1685-1757) [Italian. Baroque period.]
Wikipedia: http://en.wikipedia.org/wiki/Domenico_Scarlatti

At this point, Scarlatti is mostly remembered for the huge body of keyboard work he created, which includes a whopping 555 sonatas.

Piano & Harpsichord Music.

Piano sonatas composed during D Scarlatti's time were different from the current standard format, which evolved later. Here are a few of his harpsichord pieces:

Sonata L33: http://www.youtube.com/watch?v=9lmqDOjHx70 (Vladimir Horowitz, considered by many to be one of the 20th century's greatest pianists)
Sonata K141: http://www.youtube.com/watch?v=wjghYFgt8Zk (Martha Argerich's astounding artistry on display)
Fuge in G Minor: http://www.youtube.com/watch?v=CbW1nNBqVnI (Elaine Comparone on harpsichord)
Sonata L23: http://www.youtube.com/watch?v=JaHMdDjNnZ8 (Horowitz again)

Choral Music.

Stabat Mater: http://www.youtube.com/watch?v=24F2ritnZ9I