We did what was described but as 'Saturday Night at the Opera'. I was able to go to Mozart's The Magic Flute and Puccini's La Boheme and gather the discarded programs which we used for our filmed performances. I also copied my tickets (changing the date) so that we could give each resident a complimentary ticket to the opera (some family members were also invited) Everyone was encouraged to 'dress up' and the men escorted the women to the 'theatre' :) .... I work within a small house where all the residents have dementia - we were all astonished to see almost all stay to the very end.
P.S. I would have responded earlier but I didn't realize that my comment (Aug. 25th) was posted - nor was I aware of your question or any of the comments - I just stumbled upon them tonight :) ...