I don’t have bipolar, but I think it happens to many people to some degree or other, although for most it’s not going to be problematic, just irritating. Maybe with certain mental health conditions it’s going to be amplified in some way?
I love the Les Mis soundtrack but I get obsessed with the songs after listening to it, to the point of exhaustion from replaying them in my head sometimes, so I don’t listen to it often. This is the only soundtrack I have this issue with! Listening to it once in a while is ok, but I won’t play it in the car any more - I tend to keep the same CD in for weeks at a time before switching it for another one.