But not after hours. I have always said there is a special place in hell for people that play their music after 10 pm. There is just no excuse for it. If you live in shared space you can do what you want when you want. I hate people who think the basics of human decency don't apply to them.

I moved into a place and noticed my neighbors let the kids run up and down the halls screaming all night... not to mention the upstairs neighbors had like 10 people up there up at all hours of the night. I immediately left. Landlord let me out of the lease.

But at the moment he is charge. I think you go down once and let him know about it in a polite way (because legit sometimes people don't think you can hear) but after that... just be vigilant. If you are renting I would go to the landlord. There is a quiet enjoyment that is part of common law and required no matter what the lease says.