Complex sentence: The Concerto for Harp, Flute and Orchestra in C major (K.299) was written in April 1778 by Wolfgang Amadeus Mozart during his sojourn to Paris for the Court of Guines.
Split into simpler sentences: The Concerto for Harp, Flute and Orchestra is a piece by Wolfgang Amadeus Mozart for flute, harp, and orchestra. The concerto was written in April 1778 by during his sojourn to Paris for the Court of Guines.