I think anyone who has an interest in the circle of fiths. they should check out Jacob Collier's interviews, where he explains his way of composing with the circle of fifths.
Going around clockwise brightens and going anti-clockwise is plagal sounding. or darkening.
One should also check out ernst levy's interpretation of negative harmony. Another topic Jacob Collier likes to talk about
I've never thought about moving around the circle as brightening or darkening, but as I think about it I definitely notice Bach and Mozart move things around like that.
I'll check him out!
Wonderful interview with Jacob Collier by June Lee