Guess the time signature

don’t cheese it by looking at the bar lengths

Straight ahead 6/8 (I checked the bar length at the end but the tempo made me think it was 6/8 and not 3/4)

How about something more intense?

close enough, the answer is 6/4 (the difference is basically negligible)

as for the latter project, it sounds like it changes between two bars of 5/8 + a bar of 6/8


Wow how long has it been

Long enough I’d say