Narcissus is a piece of music composed for the piano in 1891 by Ethelbert Nevin.
The composer recalled the Greek myth of Narcissus and, upon rereading the story, the music came quickly.
[1][2] It has a simple, sweet structure which flows easily and so is a standard piece used in piano teaching.
[3] The piece was used for a light comical duet which was recorded by Sir Norman Wisdom and Joyce Grenfell in 1952.
[4][5] It also appears (with a short conversation following) as a track on Gorilla, the 1967 debut album of the Bonzo Dog Doo-Dah Band, and features in the queue for the Spirit of London dark ride at Madame Tussauds in London.