John Field (July 26, 1782 ? January 23, 1837) was an Irish composer and pianist. He is best known for being the first composer to write nocturnes. Field is best remembered for his eighteen nocturnes which are single movement impromptu compositions for piano that maintain a single mood throughout. The first three of these date from 1812. These pieces are further notable for their influence on Frédéric Chopin, who went on to write 21 nocturnes himself. Field was born in Dublin in 1782, the eldest son of Protestant Irish parents. His father, Robert Field, earned his living by playing the violin in Dublin theatres. Field first studied the piano under his grandfather (also named John Field), who was a professional organist, and later under Tommaso Giordani. He made his debut at the age of nine, a performance that was well-received, on 24 March 1792 in Dublin[1]. His family moved to Bath in 1793, and later that same year went to London. Field's father there secured for him an apprenticeship with the pianist and piano manufacturer Muzio Clementi. He attracted favourable comment from Joseph Haydn for his performances. By the time he was seventeen, Field had already premiered his First Piano Concerto (he wrote seven of them); it was one of the last acts of his apprenticeship. He was lionized as a performer for several years before turning to composition, beginning with his first set of piano sonatas, dedicated to Clementi, published in 1801. (Hide extended text)...(Read all) Source : Wikipedia