http://book.klll.cc/ebooks/subject/10462.opds?sort_order=downloads 2025-11-18T03:07:38Z Books about Gregorian chants -- History and criticism Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-11-18T03:07:38Z https://book.klll.cc/ebooks/31582.opds St. Gregory and the Gregorian Music E. G. P. Wyatt 2025-11-18T03:07:38Z https://book.klll.cc/ebooks/30412.opds On the Execution of Music, and Principally of Ancient Music Camille Saint-Saëns