Piece ID is

PAssemezo / eiusdem toni per b duro à I. B. Besardo.

in THESAURUS HARMONICUS DIVINI LAURENCINI ROMANI, NEC NON [...] Ad decennium.

GB-Lbl K.4.h.1

Start: Folio: 94rSystem: 1 View Image
Finish: Folio: 94v View Image
Finish: Folio: 95r View Image

People associated with source:

Jean-Baptiste BesardComposer(Probable)