John Blow

John Blow (baptised 23 February 1649 – 1 October 1708) was an English Baroque composer and organist, appointed to Westminster Abbey in 1669.

His pupils included William Croft, Jeremiah Clarke and Henry Purcell.

In 1685 he was named a private musician to James II. His only stage composition, Venus and Adonis (ca. 1680–1687), was thought to influence Henry Purcell's later opera Dido and Aeneas. In 1687 he became choirmaster at St Paul's Cathedral, where many of his pieces were performed. In 1699 he was appointed to the newly created post of Composer to the Chapel Royal.

A famous page in Charles Burney's History of Music is devoted to illustrations of Blow's "crudities". These show the immature efforts in expression characteristic of English music at the time. Some of them (where Burney says "Here we are lost") have since been judged to be excellent.