This is an example of a lesson I created when applying to Itutor/Full Mind. It focuses on concepts of major and minor. While I made this for primary grade levels it could easily be adapted and changed to secondary grade levels. For secondary I would use a some different selections of music examples and go into more of how scales and chords differ from major to minor music. I would also restructure the exit ticket that goes with the lesson.
Demo lesson link
Demo Lesson Agenda
Demo lesson Exit ticket