Mass no. 3 in B flat major, D.324

The Mass No. 3 in B-flat major, D 324, is a mass composed by Franz Schubert in 1815. It is written for four soloists, a four-part choir and orchestra. While by length it could be a missa brevis, its large orchestral force with trumpets, timpani and woodwinds has also led to its classification as a missa solemnis.