The Mass No. 3 in B-flat major, D 324, is a mass composed by Franz Schubert in 1815. It is scored for soprano, alto, tenor and bass soloists, SATB choir, violin I and II, viola, 2 oboes, 2 bassoons, 2 trumpets, timpani and basso continuo (cello, double bass and organ). While the length of the mass makes it a missa brevis, its large orchestral force and use of brass, woodwinds and timpani has also led to its classification as a missa solemnis.

Date of composition 1815
Type Mass
Tonality B-flat Major
Catalogue D 324
Approx. duration 30 minutes
Spoken language Latin
Instruments Voice (Soprano)
Voice (Alto)
Voice (Tenor)
Voice (Bass)
Chorus/Choir
Orchestra
Organ
Autotranslations beta Franz Schubert: Mass n°3 en si bémol majeur, D 324
Franz Schubert: Mass n. 3 in si bemolle maggiore, D 324
Franz Schubert: Mass Nr. 3 B-dur, D 324