to be fair to them, they're not putting anyone out. only reason i can hear it is i've got my window wide open, otherwise i reckon it'd be pretty muted.
but, they've played Superstitious by Stevie Wonder 3 times now, and i'm worried they might be about to go for a forth.
also, there are some people somewhere in my flat who, of a weekend, do roleplaying, and get really into it, doing chants and morale boosting songs and all sorts. the number of times i've been lying in bed, hung over, at mid-day on a sunday and heard "LET'S HUNT SOME ORC! RAAAH!" ALL: "RAAAH!"
and there's a guy opposite who has a board up in his living room with insignia from all the Apollo missions on it, and he has four clocks with New York/London/Paris/Houston times on, and what might just be a real spacesuit, or a toy one, hung up in his living room. but i've never seen him and i've only seen his curtains open maybe twice.
this is not gonna sit with the nightshift. but maybe tomorrow morning. what pecularities do your unseen, unknown flat blockmates have?