What's the deal with the same loop of classical music being played for days from the apartment next door to me?

My next-door neighbor has been playing a couple minutes of Beethoven’s 7th Symphony on repeat for over 24 hours. Actually, it starts with some other classical music that sounds like Stravinsky’s Rite of Spring (definitely not Beethoven). Then it abruptly switches to the middle of the second movement of Beethoven’s 7th. Beethoven’s 7th just plays for a minute or two and then gets cut off in the middle of an unresolved melody. It’s loud enough for me to hear very clearly in my apartment.

After that, there’s a period of silence lasting 5 or 10 minutes. Then the music starts again. This has been going on since Friday, I think.

I just knocked on his door — loudly and repeatedly — and there was no response.

I tried calling our live-in superintendent, but he wasn’t there.

I asked some friends about this, and they suggested he might be dead or in some kind of trouble, and that they would have already called 911!

I think it’s more likely he’s on vacation and accidentally put some kind of weird alarm clock on “snooze.”

Do you think I should try to do anything more about this?