Open Music Theory

This textbook is meant to support active student engagement with music in the theory classroom. That means that this text is meant to take a back seat to student music making (and breaking). It is not the center of the course. The three original authors use this textbook in the context of “inverted” or “flipped” courses, often following an inquiry-based model. As a result, most of the pages in this textbook do not read like a typical twentieth-century textbook.

Description from LibreTexts.