Have you considered learning to play violin?

Put on comically large sunglasses, take a stimulant of your choice, and knock on their door demanding to be invited to the party.

If they don't let you in, dance on their doorstep with sporadic shouts such as "THIS IS MY SONG!" and "THEY DON'T MAKE THEM LIKE THIS ANY MORE!" until you inevitably get arrested for public nuisance and the music is turned off.

They'll never play music that loud again.

If they do let you in, throw caution to the wind and have the best damn boogie you've ever had. Repeat until they don't let you in.

Put a note on their door or mailbox to let them know that their music is bad and they should feel bad.

It’s time for you to explore your taste in experimental music.

I guess since it hasn't been mentioned yet that talking to them is out of the question.

Knock on and have a friendly chat, get to know him, and mention the loudly shit music is a bit annoying. Either that or move 🤷

Fight back with Brazilian macumba music

1. Learn electronics
2. Construct one sided speaker
3. Aim at neighbor's window and load nine hours of the AAAAA Cowboy meme

Perhaps launching a shahed style drone at their house would be a balanced and reasonable response?

The answer is always black metal, as raw as you can bear.

Meditation.

Im just finding it funny thinking about a person who wakes up and

not angry because he was woken up.

Not because of loud music.

But is livid about their neighbors music choices.

Just a funny thought.

Get a karaoke set, point it at his house, and sing along as passionately as possible

Play Krautrock all morning.

Here are some songs that you could play for him:

• Baby shark: https://www.youtube.com/watch?v=4bMOTTJqGgM
• GANGNAM STYLE: https://www.youtube.com/watch?v=9bZkp7q19f0
• Kanonenfieber: https://www.youtube.com/watch?v=2OZ786ngM-4
• I Prevail: https://www.youtube.com/watch?v=lCM2YxDg6OQ
• Crazy frog: https://www.youtube.com/watch?v=k85mRPqvMbE

If you play throbbing gristle at high volume that should do the trick

Wear headphones and listen to better music.

If he's playing via bluetooth, try a bluetooth jammer

Hit em with C.Bat

I have an old Marshal stack, and my old Fender Strat.

NOBODY wins a music war with me in my apartment!

Put in some earbuds and listen to something you like. Life's too short to judge people for liking shitty music.

My neighbors always listen to great music, whether they like it or not

'the shittiest music' -> it's not reggaeton

Congratulations, you have first world problems