Alessandro Scarlatti was an Italian Baroque composer known for his operas and chamber cantatas. He is considered the most important representative of the Neapolitan school of opera, and his contribution, originality, and influence were essential and lasting both in Italy and Europe. Scarlatti invented the Italian overture in three movements, the four-part sonata, and the technique of motivic development. He was the father of two other composers, Domenico Scarlatti, and Pietro Filippo Scarlatti.