I am a beginner organ player.
If you look at the chord progression for the attached excerpt of ‘Speak Low’, it goes like this :
| Gm7|C7 |Gm7
C7| Gm7|C7 |Am7(b5)
I think this starts as a 2-5-1 in the key of F, but then it pivots elsewhere, using the Am7(b5) chord, but based on the chords that follow, I dont recognize the progressions or the key. I am guessing 2-5-1 minor in the key of G, but there are still some chords I am wondering about…Bbm7 and Eb7
Can anybody explain this harmonic trajectory?
Thanks in advance !