The Watermill is a piece of music which was written by Ronald Binge in 1958. The piece was later used as the theme music for a BBC television adaptation of The Secret Garden.
"The Watermill" was originally written for the oboe and a string orchestra but may be played on other instruments such as the clarinet. It has placed high in polls of the British public, such as those organised for the programme, Your Hundred Best Tunes.
References
The Watermill Wikipedia(Text) CC BY-SA