I've been adding songs to my Surgeburnt playlist as I come across them, and noticing a pattern: all of Maren's songs, except one, in some way reference death or dying. There's a nihilistic attitude underlying the songs I've chosen, a sense of "don't hold back, because it's all about to end." Case in point, my most recent addition:
Last Damn Night - Elle King
Maybe I could go on a deliberate search for a cheerful song, but it would probably just feel wrong.