Them youtubers work fast...
I believe other than Tetsuhiro Ogawa (who worked on KOF XII, maybe old SNK member), the rest(?) come from Iku Mizutani's
Soundfountain. Not sure if we should add them or wait for the OST (they could have worked on SE only...).
No more old SGZ members?
EDIT: console version
EDIT2: I asked Tetsuhiro Ogawa for credits and he told me it was confidential :/. But at least he responded, nice.
EDIT3: From Ogawa's site (about the console version): arranged + new music, PV (around 10-20 songs)