Piece ID is

PAssemezo I. B. Besardi in E LA MI per b durum. / Accordetur8. chorus ad notam E LA MI

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

GB-Lbl K.4.h.1

Start: Folio: 95vSystem: 1 View Image
Continuation: Folio: 96v View Image
Continuation: Folio: 97r View Image
Finish: Folio: 96r View Image

People associated with source:

Jean-Baptiste BesardComposer(Probable)