Twelve Tone Scale as Gregorian Calendar

Calendar2
I received this graphic from Bob Schlenker depicting the twelve months of the Gregorian calendar as a twelve-tone scale in an octave. This correspondence seems to suggest the Roman Church believed the heavens progress thru time like music, an idea they called Musica Universalis. Ironically, my birthday happens to be July 31st corresponding to B, which forms the tritone interval "Diabolus in Musica" with January 31st on F.