3820 / 18210 · Workshop 20 — “I Got Rhythm” / Rhythm Changes: AABA Form, Fast Turnarounds, Dominant Chains, and Thinking One Phrase Ahead← prev⊞ allnext →20.39ExampleOriginal: D7 → G7. Substitute D7 with A♭7: A♭7 → G7. Bass: A♭ → G. Very sleek. ← Previous20.38 Level 17 — tritone substitutions on the bridgeNext →20.40 Another