ABSTRACT
This chapter offers some observations on the relationship of a Petrucci print to a Vatican manuscript. In some of the copies of Josquin Masses made by Orceau it is possible to see similar signs marking the same place in all voices; they come mostly in Gloria and Credo sections. Petrucci’s edition was published in March, 1514, but presumably was prepared earlier, perhaps in late 1513. Its close relationship to the Gloria of the complete Mass in Petrucci suggests that Petrucci did not have access to an exemplar to the complete Mass, and instead constructed his publication of it from exemplars of individual movements, one of them found in the Vatican. Thus, the relationship does not allow any kind of generalizations about the way Petrucci got his music. The sources of most of Petrucci's repertory may have been extremely various, and they have yet to be uncovered.
