The name of this musical form comes from the Italian word suonare meaning "to sound". In the past (17th century), a sonata was an instrumental piece for multiple voices and thus became the opposite of a vocal cantata. Generally, it is performed by one or two instruments, with the latter usually being a piano. In the classical and romantic eras, a sonata consisted of four parts, which later appeared in symphonies. The first part is allegro, with two main themes juxtaposed, using modulation to change keys. The next part is adagio, a slow and free-form section. The third part, originally a minuet, was often replaced by a scherzo. The final part of a sonata is sometimes in the form of a rondo. It is also worth mentioning two types of sonatas that developed in the Baroque period, namely sonata da camera and sonata da chiesa. The former consists of a prelude or introduction and two, three, or four parts usually associated with dance. In contrast, the sonata da chiesa lacks dance elements and is structured with four pieces: fast-slow-fast-slow. Some of the most famous sonatas include: Scarlatti's Sonata in C major, C.P.E. Bach's Sonata No. 4 in A major, Gabrielli's Sonata Piano e Forte, Beethoven's "Moonlight" Sonata.
BAROQUE Corelli's Sonata da chiesa in G minor performed by London Baroque.