This volume investigates the evolution of Mozart scholarship and the bibliographical challenges inherent in cataloging his extensive musical output. Alexander Hyatt King, a distinguished music librarian and scholar, synthesizes decades of research to address the inconsistencies in historical documentation and the critical reception of Mozart's compositions. The text provides a rigorous framework for understanding how primary sources, early editions, and biographical accounts have shaped the modern perception of the composer's work.

Musicologists and librarians frequently cite this work as a foundational text for understanding the complexities of Mozart's bibliography. The prose is noted for its academic density and precise attention to the technical details of music history.