Being that stygian, when I just looked it up, refers to both ill-tempered & dark/dreary, I'd like to present a fitting example of both by a truly "class" metal band that would be better known in a better world IMO. Please try to stick with this one for a bit if this sort of music is not normally to your liking, as around 1:28, a quality melancholy melody appears, and some well done conventional singing also appears.

Keeping to the themes of melancholy and winter, here's a short instrumental "Snow Bound", from one of my favorite metal bands, of whom I previously posted another song.

Why would snow make you feel "atrabilious?"
Whenever I saw snow in Morehead, KY, I got excited..time to head for the nearest slope for a sled run, or go skijoring with the horses. After the snow stopped, the next day I'd go out to snoop on all the wild animal goings on..where the red fox pair caught a rabbit, where the female coyote passed, etc. If the cold snap extended to WV, I'd head for the ski slopes there (Kentucky's ski slopes were awful).

Pic: my kids skijoring with my son's horse, Black Jack, when my daughter was eight, and my son eleven, on our Morehead farm.

A little Iggy works:

Just askex Alexa to put Chopin since you asked.

Michael Hoppe, new age, anything cello

The Smiths