The Prelude in C Minor (BWV 999) is a prelude, possibly for solo lute or another instrument written by the composer Johann Sebastian Bach, probably during the late 1710s or early 1720s. An edition of this work that is arranged for piano is available under the title J. S. Bach: Eighteen Little Preludes, edited by Keith Snell. It has been widely adapted into other instruments such as violin, piano, guitar etc. – Julian Bream.