Ja, wird wirklich benutzt:
Another characteristic of music that is linked to individual characteristics of the listener can be the tendency to develop the so-called “earworm” (Kellaris, 2003). An earworm is the result of listening to a piece of music that replays over and over again in the mind. Kellaris terms it a cognitive itch, suggesting that certain songs have properties that could almost be termed “psychological histamines,” and that the only way to scratch the resulting itch, or use a “psychological anti-histamine” is to repeat the offending melody in the mind. He also suggests that some people are more susceptible than others. Women tend to be more susceptible than men, and musicians are more susceptible than non-musicians. (http://www.nova.edu/ssss/QR/QR11-3/gavin.pdf
Kellaris, J. (2003, February). Dissecting earworms: Further evidence on the “Song-stuck-in-your-head” phenomenon. Paper presented at the Society for Consumer Psychology Winter Conference, New Orleans, LA.
One more thing on the connection between memory and music bears mentioning, if only for the name: the "earworm." This word, from the German "ohrwurm," describes the annoying feeling of having a song stuck in your head. (http://philosophy.tamucc.edu/article.pl?sid=0...
Allerdings ist "Ohrwurm" eher positiv und "earworm" eher negativ.