chord X notes = A# + D# + G + C
capitalization does not matter for those because there are the single notes in the chord and I have no idea what to call it.

progression:
capital letter = major chord.
lowercase = minor chord.
part 1: X F X F X F
part 2: g c F g
part 3: g c Dsus4 D




what is X? 



Default
I'd say it's D#6, and the VI chord of G minor scale, so the first part would be a VI-VII progression.




B flat six nine.

alternating with F functioning as Vth.

with the g-minor (keeping the B-flat) as the VIth.