Mozart, Wolfgang Amadeus : Missa brevis

The first page of the autograph of the Mass K.49 (47d) bears below the authorís name the crossed-out (autograph?) suffix ìin Wienî (ìin Viennaî). ì1768î and ìin Wienî have been added by two other unidentified, eighteenth-century hands. Mozartís handwriting and the paper quality appear to verify this information. Moreover, Mozart sketched the draft of the Gloria (measures 1 to 18) on a piece of paper, the reverse side of which his father had used, undoubtedly before that, for the fair copy of the piano score of aria no. 11 from Bastien et Bastienne K. 50 (46). In Leopold Mozartís list of works composed by Wolfgang up to 1768, ìEine kleinere Messe a 4 vocibus 2 Violinis &cî (ìa small Mass with 4 voices, 2 violins, etc.î) appears as the penultimate entry; the year 1768 was added by Mozartís sister. Although the obbligato viola is not mentioned there, this comnposition is surely the Mass K.49.