Has anyone figured out the name of that "Swing Swing" song? Its been years :(

Nope.
I don't remember it.
I actually think it might be labeled as one of Soul's songs...like his black blood song ou something. Insanity, maybe? I dunno.
My best guess~

Do toi even know what 'swing swing' musique is...
It can be classified with anything including jazz and it is toi inferior specimen, also the reason it's reffered to 'swing swing' is because the demons says 'swing swing' through half of the meetings soul has with him when listening to it.

It is jazz, yes however it is also balançoire, swing music. So please die in an empty school grounds for some faculty members to find your rotting corpse.