Water Music
The Water Music is a collection of orchestral movements, often published as three suites, composed by George Frideric Handel. It premiered on 17 July 1717, in response to King George I's request for a concert on the River Thames.
Parnasso in festa
In "Parnasso in festa", Handel re-used much of the music he had composed for the English oratorio "Athalia", which had been presented in Oxford on 10 July 1733 "to immense applause". Re-using music in this way, especially for an audience in a different location than the one where it had been heard first, was a common practice of Handel's and of other composers of the time. 18th century musicologist Charles Burney observed of "Parnasso in festa" that the music "was new to the ears of the greatest part of a London audience; and Handel with all the riches of his genius and invention, was very economical, and as frequently turned and patched up his old productions, as if he had laboured under indigence of thought." However a substantial portion of the music of "Parnasso in festa" was newly composed for the piece.