Missa brevis in C major, K.258, "Piccolomini"

The Missa brevis No. 7 in C major, K. 258, is a mass composed by Wolfgang Amadeus Mozart in 1776. It is scored for SATB soloists, SATB choir, violin I and II, 2 oboes, 2 clarini (high trumpets), 3 trombones colla parte, timpani and basso continuo.
Although classed as a missa brevis (brief mass), the inclusion of trumpets in the scoring makes it a missa brevis et solemnis.
The autograph manuscript of the mass is preserved in the Berlin State Library.