Score copy with title-page in Zelenka's hand, with the rest by one of his copyists of the mass in b minor 'Matris dolorosa' by Antonio Caldara /1670-1736/, preserved by Zelenka in his collection of works copied for the purpose of study titled 'Collectaneorum Musicorum', a collection of four books /liber/ compiled during Zelenka's period of study in Vienna with Johann Joseph Fux between the years /1716-1719/. This particular work is not in that particular collection, but not outside the scope of being a work copied by Zelenka for the purposes of study, and mastering his craft, especially the art of counterpoint. Other score-videos from Zelenka's Collectaneorum Musicorum > kzbin.info/aero/PLBbL1YJd7_WrHanR9-rSEAVPPgZXwlFt9