***I actually enjoy classical music.***
Same here.
I wonder if traditional Japanese music and singing would keep the riff-raff away.
Probably not, though enka is an acquired taste (full disclosure: I acquired it living in Japan during the Vietnam war era).
OTOH, Beijing Opera would keep everyone away, and I mean everyone. Try it yourself here. (FYI, it's a guy singing, women were forbidden from the stage.)
Or Yoko Ono.