Different performances have different numbers, casting, direction, etc. So while some shows may have TV screen and some may have the actual performers, some may include different characters just to look better on stage :)
Mistress Meloetta It’s sung by the entire company, but it usually accompanies a video rather than it being sung on stage. There are variations to the video, but it’s generally something like this: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-FsDf2kCNWRA.html
