3793 / 18210 · Workshop 20 — “I Got Rhythm” / Rhythm Changes: AABA Form, Fast Turnarounds, Dominant Chains, and Thinking One Phrase Ahead← prev⊞ allnext →
20.12Level 5 — substitute vi with VI7
Compare:
B♭ → Gm7 → Cm7 → F7
with:
B♭ → G7 → Cm7 → F7
The first is diatonic.
The second has more forward motion.
The changed note:
B♭ → B natural.
Train your ear to hear that immediately.