My LG washing machine does the same. Additionally, Korean convenience stores usually play something like a midi Für Elise when the front door opens as opposed to a bell. Even luggage cars in airports do the same.
I have a cheap Chinese-made doorbell with eight tune settings. The first is Fur Elise, and the traditional "ding dong" is number eight. Any time the power goes off it resets to number one. Needless to say I have given up clicking the button and resigned to my fate as a Fur-Elise-Doorbell-Person.
No Ode to Joy or Toccata and Fugue in D minor (BWV 565)? D: