Neighbours away, teenagers at home

[user1494597756]

We moved in to a property a year ago. We met our neighbours both sides and they seemed lovely. We live in a semi detached house.The neighbours attached to us are quiet. The other side are noisier generally, talk loudly, like their music on etc… but all very acceptable, especially as we aren’t attached to them, so we can only really hear them when they’re in their garden. I understand we all have to be fairly tolerant to others, particularly when we live in fairly close proximity.
Problem now is, the parents have gone away on holiday, leaving at least one boy, late teens/early twenties… home on his own.
Every night this week, the music is blearing, that thud thud thud is driving me mad.
His mates have been over every night this week and you can’t get away from the shouting and foul language.
Theres no way I can sit in the garden, even with the windows closed in the kitchen, I can still hear every word. Their conversations are so demeaning to women that it turns my stomach, I thought we were trying to educate our sons?
My problem is, what to do? I’m a descent neighbour and generally get along well with people, but I completely flip if you catch me on my last nerve.
Shall I just leave it and wait for the parents to come back next week? Shall I go over? (Bearing in mind, once I get started I might regret what’ll come out of my mouth?)
Shall I mention it to the parents when they get back?
WWYD?

Can you call/text the parents? That would be my first call.

Depending on the kid I'd then probably go round but you absolutely have to maintain the moral high ground here - 'don't know if you realise how loud the music is and that we can hear all of your conversations, to be honest as a woman it's offensive and very uncomfortable to not be able to escape that sort of talk. So would appreciate it if you'd moderate the noise.'

If no joy I think you're probably stuck as it's short term, unless it goes on really late.

We had this in a previous house, but minus the repugnant conversion (ie just the mates and the music). Whenever I went round to ask them to keep it down, they did because it turned out their parents had told them expressly that they weren't allowed parties in their absence and they didn't want me to grass them up!

In all likely hood, I'd wait it out, yes it's certainly taking the biscuits, but at the same time, they could make it worse, rather than better if you approached the party.

I tell my son no parties too, so if you pop round and say
I really don't want to call your parents whilst they are away, but can you keep the noise and swearing down otherwise I'm going to have to call them and let them know.

They will stop I'm sure

I agree with @JassyRadlett