Hey Free For All Paul - you've got both Optimista and Harry Whitaker's Black Renaissance, right? Listen to "Magic Ritual" off the latter and "Oasis" off the former and tell me if you think there's a little bit (or more) of harmonic similarity. This just hit me last night while listening to "Magic Ritual".
Considering that the acid-jazz "legend" of Black Renaissance began in Japan years before it did anywhere else, and considering that Monday was a pioneer of the Japanese acid-jazz scene (she was a club DJ before she started recording, I think, routinely dropping in jazz sides for dancers), I don't think it would be too much of a stretch for the similarity between tunes to be intentional.