This is from a Grade 8 piece. I think I understand it but wanted to check a few things...
Bm7b5 - E7b9- Am7 - D7b9 - Fma9 to Gm7 - C7b9 - Fmaj7
I see 2x II V Im first 3 chords and the last 3. What’s the function of D7b9 and Fmaj9??
in the next section is where my head hurts.
from Fmaj7 - Am7 - Dm9 - Dm7 -Ab - Bb - Gm - Abmaj7 - Am7b5 - D7b9 then resolves to G for the next section.
So I - III - VI (F) modulates to (Eb Major) IV - V - III - IV - so Ab Lydian sound
then II - V - I In G?