Mass in A flat major (Messe in As). By Franz Schubert (1797-1828). Edited by Michael Heinemann. For Soli SATB, SATB Choir, Flute, 2 Oboes, 2 Clarinets, 2 Bassoons, 2 Horns, 2 Trumpets, 3 Trombones, Timpani, 2 Violins, Viola, Cello, Contrabass, Organ. As-Dur (A-flat major). Stuttgart Urtext Edition. Score available separately - see item CA.4065900. Masses, Latin. Level 3. Part: cello. Language: Latin. D 678. 20 pages. Duration 50 minutes. Published by Carus Verlag (CA.4065914).
ISBN M-007-08549-0. With Language: Latin. Masses, Latin.
This, Schubert's second version of the A flat Mass, also contains in the appendix the first version of the "Cum Sancto Spiritu" fugue as well as a variant of the "Osanna.".