For some reason, I haven't had this problem lately (my meds?, that I am listening to music less often?). However, it has been an on and off problem for me since I was a child. Perhaps it is a hypo thing because it tends to happen with uplifting, upbeat type music the most. Sometimes, the first song I hear in the morning that makes me feel good or that I relate to can get "stuck" for days. Usually it is just a few lines of the song. It becomes especially annoying when just one line keeps repeating.

There are certain songs that I know can have this effect when my brain is behaving this way. For your sake, I won't include any links to the songs or mention the artists.