IV. Score in a series:  Use the same style as a "Book in a Series."
(Note: DO NOT underline or italicize the series title) following MLA 8 p. 52
 
f. In a scholarly edition with two title pages:

Salieri, Antonio.  Messe in B-Dur (1809).  Edited by Jane Schatkin Hettrick.  Akademische Druck, 1988.  Denkmäler der Tonkunst in Österreich, Band 146.