Leopold Mozart described KV 262, unlike Mozart's considerably shorter masses of the same period, as a "Missa longa". The prolixity of some of the movements and of concluding fugues in the "Gloria" and "Credo" is indeed surprising. The full orchestral scoring also emphasizes the ceremonial character of this Mass.
Catalogue number: KV 262
Year of composition: 1775
Soli SATB, Coro SATB, 2 Ob, 2 Cor, 2 Ctr, Timp, 2 Vl, Bc, [3 Trb]
Duration: 25 min
Text source: Messordinarium