I live in an upstairs apartment and the guy that lives next door to me comes home and plays the same song on his saxophone every day...the same song...over and over. At first it bothered me but now I'll just turn on some music or the TV and turn it up loud enough to drown him out. If it bothers you that much I suggest calling the office and if they didn't do anything about it I would take Sprockets advice...or at least start banging on the ceiling with a broom or something. Maybe you can start hammering something every time they out their kids down for bed.
