Not sure if it was a fever dream but probably more opiod medication related…
Its some combination of the following
some cartoon wedding segment
South Park?
there’s like a wedding song that gets cut off but it sort of sounds like this but its like an organ and I’m saying that because its possible I was playing that game a little while South Park was playing in background
its only like a 3-4 second motif and I feel like it plays a few times throughout
structurally its conjunct and it starts on the tonic,