BiblioVault may have an electronic file which would meet your requirements for this title:
The Lucca Choirbook: Lucca, Archivio di Stato, MS 238; Lucca, Archivio Arcivescovile, MS 97; Pisa, Archivo Arcivescovile, Biblioteca Maffi, Cartella 11/III
Reinhard Strohm, Reinhard Strohm and Reinhard Strohm
Cloth: 978-0-226-49639-9