Jeffrey Kurtzman 
Vesper and Compline Music for Three Principal Voices [PDF ebook] 

First Published in 1998. A New Series Fills a Void in 17th-Century ItalianMusic
Drawing on the riches of a largely unknown repertoire, this innovative series makes available in modern score a large selection of Italian sacred music scored from printed part-books that has never before been published in modern editions.
Convenientlyorganized and presented in modern scoreEach genre is organized for easy accessibility. Mass settings are presented in chronological order. Vesper and compline music is arranged according to the number of voices, chronologically within each volume, beginning with works for one and two voices and progressing to compositions for multiple choirs.