There are several books and musical editions which I have been hoping to acquire, but which I can not locate or for which I am not prepared to pay the prevailing commercial price. Would anyone here have one or more of these and be willing to sell yours at a negotiable price?

To keep the thread focused, please limit responses to the question posed.
I search Amazon, ABE, alibris, and similar sites for these fairly frequently.
I’ve tried contacting the first-listed editor.

Many thanks for any leads you might have!

Gregorian chant editions of A. Turco
B Zon - English Plainchant Revival
Late Medieval Liturgies Enacted: The Experience of Worship in Cathedral and Parish Church (2016)
K Marshall - Historical Organ Technique and Repertoire Vol. 9, Renaissance 1500-1550
D Filippi - Listening to Early Modern Catholicism, Perspectives from Musicology
T F Kelly - The Practice of Medieval Music: Studies in Chant and Performance