Advertised as "Six Days of Sound," Bill Graham set up a run of shows for six nights that culminated in one of his epic New Year's concerts. To accommodate the crowds, the venue was "the Fillmore scene at Winterland," and artists ran the gamut from Chuck Berry to the Doors and Big Brother & the Holding Co. to Quicksilver Messenger Service.
During the early days of the Fillmore, MacLean was the most "present" member of the staff. She collected tickets, passed out handbills, blew up balloons and counted money for Fillmore productions. Impressed with her lettering skill on the upcoming attractions chalkboards, Bill Graham surprised her with an easel and art supplies for Christmas, 1967, and MacLean's poster artist career was launched. Untrained in graphic arts, MacLean's early style evolved into ornate, Medieval-Gothic designs. Faces in her posters wore trance-like stares, steady and serene, and evoke the detached spirituality of the sixties.