Here's the set list: first you learn it — 3 quick hands-on cards. Then you prove it — 6 theory and 2 ear-training challenges. Every right answer adds a bar to tonight's song, Villain Enters (C diminished, 💓 Heartbeat).
📝 Riff sheet
The diminished (octatonic) scale alternates whole and half steps — eight notes. Whole-half fits dim7 chords; half-whole fits dominant 7♭9 chords.
Covers: The eight-note diminished (octatonic) scale, whole-half and half-whole forms. Turn your sound up.