Insights into the Historical Classroom: Adam Gumpelzhaimer's Compendium Musicae as a Method for Solmization.

This article focuses on Adam Gumpelzhaimer's *Compendium musicae* (1591/95) as a rare and valuable source illuminating the practical pedagogy of the traditional solmization system with hexachords and mutations in late sixteenth-century music education. Gumpelzhaimer, a southern German composer and music teacher, developed a systematic solmization method demonstrated through an extensive collection of canons designed for progressive vocal training, from beginner unison singing to advanced polyphonic exercises. Drawing on historical accounts of choirboy instruction, particularly from Joseph Balthasar Hochreither in the early eighteenth century, the article outlines a multi-stage teaching approach where canons were repeatedly used over several years, integrating solmization syllables, mutation techniques, and ornamentation before introducing text. The *Compendium musicae* thus serves as a crucial link in understanding how solmization was methodically taught and practiced in German-speaking regions from the late Renaissance into the Baroque period.