I am just learning the nouns and adjectives, so no, I didn't understand the Latin. But the melody and the harmony were beautiful! As for the second song, I certainly didn't expect anything like that when I heard that it was Japanese. It must be very Western. It was still pretty, though.

I'm not sure why restrictions on dressing at the hall would prevent anyone from wearing formal attire, unless it was some kind of costume that you would never wear out in the street but only to perform. Otherwise, most women change into their formal or evening clothing at home and stay out all day or night, as the case may be. My idea of formal, for me personally, is suits and ties, but my previous statement would still hold, especially for those of us who love antique menswear! It would take forever to change! haha