In the song Let It Ride by Robert Glasper, he uses this voicing AFAICT for the first chord of the song:
C G Ab Bb Eb
I don't know what to call this except Cm7b6, but sites like Ultimate Guitar don't recognize this as a valid chord. Is there any other name that unambiguously specifies these notes?
The second chord is almost the same transposed down:
A F G C (EDIT: actually it's voiced A G C F)
I'd call this F2/A. The first chord is almost Ab2/C but that wouldn't imply the G.
EDIT: Here's the progession I just submitted to Ultimate Guitar:
Cm7b13 Fsus2/A I've never been a gambler Bbm9sus4 Fm9 I stay on the same side Dm7b13 Csus4/Db in all Fm9 Fsus4/Gb So I know I'm alright