The Forms and Orders of Western Liturgy from the Tenth to the Eighteenth Century: A Historical Introduction and Guide for Students and Musicians (Clarendon Paperbacks)
"Should be in all music and liturgy libraries.  It is a good reference work for music history students.  Choirmasters who want to learn about the various forms and liturgists who are interested in knowing the derivation  of present rites need this book....It is a mine of information, well organized and clearly presented."--Sacred Music"The best study and guide on Medieval liturgy that I have found."--Carol C. Vaughn,Houston Graduate School of Theology"Superb. Brings together perspective on materials about medieval liturgy that are not accessible in any other single volume."--Paul Westermeyer,Luther Northwestern Theological Seminary"An excellent introduction to a vast and complex subject!  The appendices and glossary alone are worth the price of the book--but the rest is just as good."--David W. Music,Southwestern Baptist Seminary"An excellent, well-written book appropriate for reference and as a text in theological seminaries."--W.L. Hooper,Southwest Baptist University