Giuseppe Domenico Scarlatti was an Italian composer who spent much of his life in the service of the Portuguese and Spanish royal families. He is classified as a Baroque composer chronologically, although his music was influential in the development of the Classical style. Like his renowned father Alessandro Scarlatti he composed in a variety of musical forms although today he is known almost exclusively for his 555 keyboard sonatas. Only a small fraction of Scarlatti's compositions were published during his lifetime; Scarlatti himself seems to have overseen the publication in 1738 of the most famous collection, his 30 Essercizi ("Exercises"). These were rapturously received throughout Europe, and were championed by the foremost English writer on music of the eighteenth century, Dr. Charles Burney.