I always figured the Richard medley gave Karen time to go stretch out in the backstage area for awhile. A lot of concerts even today are designed that way - drum solo or guitar solo, the rest of the band goes out back for a smoke. And, I think Richard always felt that he didn't get enough "credit" for his contributions to the group, so maybe that was why they included more of his solo stuff in the track list. But it's surprising they included THAT much of it.