Musica Orbis's 1975 "The Coming of May", a midnight spring concert at Sanders Theater in Cambridge MA,
was the brainchild of Mike Baron, then head of Mather House Music Society at Harvard University
(click here to see his preparatory article in Cambridge's Real Paper).
The flyer below, drawn by Kitty Brazelton, was sent to Musica Orbis's growing Boston mailing list.
Before the concert, Musica Orbis was Ron Della Chiesa's guest on WGBH-FM.