To answer the question about Donna McKechnie in the London Promises Promises, she opened the show and played her role for four weeks. To quote Miss McKechnie: "Michael aparently thought that it would be in his best interest to have me open in London to show off his choreography" So it would depend when the show was recorded. The show opened October 2, 1969. Was the show recorded during the first four weeks or after? My source says that she was on the recording.