Asch wasn't a fan of unnecessary noise in the slightest. It wasn't just because of his hyperresonance; being a partial manipulator of sound itself made him a little more sound-sensitive than most. But noise carried, and music tended to carry further than most other things. He'd first caught wind of it while wandering through the hotel out of sheer boredom, and by the time he reached the room it was coming from, he irritated nearly to the point of violence. How could people become so complacent? Sure, he had yet to find a way out of this place, but it didn't mean he wasn't looking.
So of course he poked his head in as he reached the room, seeking out the target of his annoyance and shouting out, "What the hell is with all the noise!?"