Trying to figure out the chords of this chill / ambient beat.

[theroachlife]

I really like the emotion of the chords used in this track I found last night. I'm trying to figure out what key and chords were used. The homie killed this beat.


mysts by Pále on SoundCloud - Create, record and share your sounds for free

 

[bandcoach]

Cm[sup]7[/sup] for the first minute or so then Cm[sup]7[/sup]-E[sup]b6[/sup]-Fm[sup]7[/sup]

Cm[sup]7[/sup] ~ C-E[sup]b[/sup]-G-B[sup]b[/sup]
E[sup]b6[/sup] ~ E[sup]b[/sup]-G-B[sup]b[/sup]-C
Fm[sup]7[/sup] ~ F-A[sup]b[/sup]-C-E[sup]b[/sup]

Likely to be modal in Fm (A[sup]b[/sup] major) - being the natural minor but using [sup]b[/sup]VII (E[sup]b[/sup]) as a substitute for chord v (Cm)