34 in C major, K. 338, was written by Wolfgang Amadeus Mozart in 1780, and completed on 29 August that year.

[1] The first movement is written in sonata form but also contains many styles and formal aspects of an Italian overture.

Finally, the movement's coda contains nearly all of this first theme creating the appearance of a reverse-recapitulation common in Italian overtures.

[1] The second movement in F major is scored for strings with divided violas, and a single bassoon doubling the cellos and bass.

[1] Alfred Einstein suggested in the third edition of the Köchel catalogue that the Minuet K. 409 was written at a later date (1782) by the composer for this work.