As the title says…which song still haunts you emotionally? And why? A (freely accessible) link might greatly bring your point across.
Mine would be: (Typhoon - “Empiricist”) https://www.youtube.com/watch?v=9E328pIZWFM
The lyrics go deep and it just touches me. No otherwise special attachment.
Unchained Melody - The Righteous Brothers
Sitting in the back row of the movie Ghost probably our 4th or 5th time seeing it, he finally got the nerve to kiss me, it was truly magic, I miss him so much.
This song plays at one of the hardest moments of the visual novel Steins;Gate. It also starts the same moment in the anime, but the VN truly nails the nature of the moment better.
Without spoiling it, all I can say is that the scene is just as sad as the song is.
Edit: The S;G0 version has strings and captures even more of the feelings, although the original is more than enough on its own.
The song “ONE MORE LIGHT” by Linkin Park was already hard to listen to, knowing the dude who sang it killed himself shortly after makes it worse…
“Space Doggity” by Jonathan Coulton still gets me. It’s about Laika, the first dog in space. Also the first dog to not come back from space. Jonathan is a particularly genius songwriter and this one does not disappoint.
https://www.youtube.com/watch?v=YEXqLkj9J10
Mah’s Joint by Jon Bellion. my grandfather has dementia, so this song always hits me so hard.