Prelude in E major, BWV 937 "6 Little Preludes "zur Anfanger auf dem Clavier""

The Six Little Preludes (BWV 933-938) are a group of preludes written by the composer Johann Sebastian Bach for harpsichord. They are all short, pedagogical efforts written in or around the period of 1717–1720, but they were not published until 1802. These pieces are all short but require a strong understanding of technique.[citation needed] This is one of a series of 18 preludes[which?] Bach sporadically[weasel words] produced around 1717–1720, primarily for instructive purposes, and were not intended for performance.[clarification needed][citation needed]