Instruct: Classify Amazon reviews into positive or negative sentiment
Query: An Excellent Reference

This volume provides an encyclopedic reference of musical compositions that is sure to be useful to the professional as well as to those amateurs like me who enjoy collecting and listening to concert music. A little overwhelming to the novice perhaps, but invaluable none the less. I have never before seen a reference that listed the individual arias in an opera. One quible. The earliest composer cataloged is Monteverdi. As a lover of Renaissance music, I missed Byrd, Palestrina, Josquin Desprez and others in that period. No doubt the material from those earlier eras poses research challenges beyond the scope of the project but the book feels a little incomplete without them.