Hybrid Pedagogy Publishing is proud to announce its first textbook: Open Music Theory, “beta” edition—co-authored by Kris Shaffer, Brian Moseley, and Bryn Hughes. Open Music Theory, or OMT, is an open-source, interactive, online textbook for undergraduate music theory courses. As we write on OMT’s About page, we hope that this textbook will “support active student engagement with music in the theory classroom” and that the text will “take a back seat to student music making (and breaking).”