which is that extremely famous accordion tune that quite often plays in

hey, i was wondering what's the name of that very famous accordion tune that plays quite often in both the tv series and the animated series? It normally plays when mr bean is around his car. In the an episode of the animated series a similar, but not the same, tune is playing whenever the ray of sunshine shifts away from wherever mr bean has laid down a sheet to sunbathe. Heres the clip for reference http://youtu.be/Jf7c4vqTg6Y