It's probably a proprietary connector made specifically for Yamaha, or Yamaha made it themselves. It's loosely based on car connectors from what I can see, but I don't think you're gonna find much info about it.

I'd just go in "guns blazing" with this thing. If there is a replacement for it and it's fairly cheap I mean. If not, I'd try and pry the silicon off with some of my DIY tools for these sorts of situations.

I wish to know how to open this socket to access the rubber/silicone seal inside, and to know that first I need to identify the name of this connector

What exactly do you mean by this, is the connector sealed?

Yeah, that could actually be fun to be honest, lol 😂. But I just know the PR would be rejected, lol 😂.

That is... brilliant! I love it!

Could've at least say thank you...

Yes.

Because apparently, he moved it there... and doesn't know what /dev/null is...

And if really want quality recovery, /dev/urandom. Might take a bit longer, but it's worth the wait 👌.

/dev/void 🤔

Patience is key.

That is true, though it would be pointless to look for it in /dev/null.

Some sort of trip-hop most probably... with some breakbeat elements.