for earworms (i.e. songs), i erase it with Wanna Date My Avatar.

that song never sticks in my head when I don't want it 👍

i haven't tested but i theorize this song works so well because it's based on a very basic rhythm. my guess is the beat track is from a generic free track pre-programmed into electric keyboards (music, not computer typing).

so by extension, other simple midi style beat tracks or simple songs could also work.