Oh well, i already wrote almost everything in the description, could have guessed theres an additional text field for details.

As i said, i'm quite finished with this, although i still got some issues with the servo, but right now i'm too lazy and i am not up to troubleshoot this.

BTW, if you don't know Mozarts Magic Flute, i found a youtube video of someone else where you can listen to the melody of the glockenspiel.

The Seeeduino drives the glockenspiel with varying speed, just as if it had a mechanical drive like the old musical boxes had.

= Update as of May 17th 2015: =

I made a control program in Processing, which connects to the Router via Telnet and sends commands to the Alarm.