It's a musical lamp i registered at a friend's house two years ago. It seems to be a headlamp, but i'm not quite sure anymore. As you guessed, it plays beethoven's song called "für elise".
Here is a short recording of one of my male cats (a big good boy who resembles a chartreux) licking his tummy: to be honest, one of the most annoying sounds ever (especially if you are trying to concentrate and study).