The present C-major Trio Sonata is derived from two works of Johann Sebastian Bach: Movements 1 and 3 from the Organ Sonata BWV 525, and the Largo from the Flute Sonata BWV 1032. The manuscript was written in the mid 18th century, thus perhaps still during Bach's lifetime or at least by someone from his circle of pupils. It is possible that Bach personally arranged the piece or encouraged its revision. In any event, the scoring – rather uncommon for its time of origin – has precursors among composers such as Buxtehude and Reincken. On the other hand, this trio-sonata scoring gave rise in the early classical era to the genre of the classical piano trio, which decisively stamped by Haydn and Mozart.