Trumpet voluntaries are associated with the English Baroque era and usually consist of a slow introduction followed by a faster section with the right hand playing fanfare-like figures over a simple accompaniment in the left hand.
The best-known trumpet voluntary is the Prince of Denmark's March, a composition by Jeremiah Clarke written circa.
[1] It is properly a rondo for keyboard and was not originally called a trumpet voluntary.
[2][3][4] This piece, particularly in a well-known arrangement for trumpet, string orchestra and organ by Sir Henry Wood, was incorrectly attributed for years to Henry Purcell.
The organist and composer John Stanley also wrote several trumpet voluntaries, as did Clarke's teacher John Blow.