I somehow, rambled a bit in response to this question, I don't know how I did it but ramble ahead

I only see me playing an instrument as casual and every now and then, and programming is easier for me to pick up (I already know html and css, I'm attempting to learn javascript and I plan on learning another so I can eventually make my own games), plus the learning part of it, and figuring things out by myself is part of the process, and can be enjoyable once you've gotten through a decent amount of a project even if it's frustrating and boring at times, though maybe that's just what hyperfocusing can do to you, I'm hooked I fear
So I'd pick a language like Korean, maybe another but Korean is the one I want to learn most for hyperfixation reasons (ORV, manhwa, Korean webnovels, yeah not for music just for reading), I personally find learning a language like that boring, as, unlike coding, you can't visually see if you've done something right or wrong unless you know you're right or wrong, I prefer live previews when I code for a reason, if I were to type or do something incorrectly I'd know right away and can then troubleshoot, it's visual, but with language I'd have to double check everything, it doesn't help that I sometimes mix up certain hangeul and words so I have to double check a lot
Basically, I'd pick knowing a language like Korean without the tedious learning process that I personally find boring and can't sit still through, but since I don't currently know Korean enough, I actually have to put in the hours to learn it, but maybe it'll be enjoyable at some point who knows