For 10 points, name this composer of 555 keyboard sonatas, the son of Alessandro.
A contemporary of this composer named Thomas Roseingrave helped popularize his music in England. One musicologist argued that most of this composer's sonatas are characterized by a pivotal point in each half called the crux. According to legend, the main theme of one of his works was inspired by his cat Pulcinella walking on his keyboard, hence that work's nickname, the Cat Fugue. One catalogue of this composer's works was created by Giorgio Pestelli. His best known religious works include his setting of the Stabat Mater and his Salve Regina, his last known work. A chronologically ordered catalogue of most of this composer's works was created by Ralph Kirkpatrick. For 10 points, name this composer of 555 keyboard sonatas, the son of Alessandro.
A contemporary of this composer named Thomas Roseingrave helped popularize his music in England.
(Giuseppe) Domenico Scarlatti