Here's the set list: first you learn it — 4 quick hands-on cards. Then you prove it — 5 theory and 3 ear-training challenges. Every right answer adds a bar to tonight's song, Spooky Stairs (A harmonic minor, 💓 Heartbeat).
📝 Riff sheet
dim7 = three minor 3rds stacked (3+3+3). Every note could be the root, so it can lead almost anywhere.
Covers: dim7 as three stacked minor 3rds, its symmetry, vii°7 resolving to the tonic. Turn your sound up.