4812 / 18210 · Workshop 31 — “Giant Steps”: Coltrane Changes, Major-Third Key Cycles, Ultra-Fast Tonal Reorientation, and Surviving Harmony That Moves Faster Than You Can Think← prev⊞ allnext →
31.20Level 6 — major-third key-center map
Memorize:
B — E♭ — G
Clockwise mentally.
Then reverse:
B — G — E♭
You should be able to name the next center instantly.