Fisher & Paykel appliances have one feature that makes them stand out from all others. They produce a distinct, audible code to indicate the likely source of any malfunction and, as you have probably worked out already, the code used is definitely distinctive!
There are several demonstration modes where the appliance can play the national anthems of the USA, Australia or New Zealand. In this case, the control panel was faulty, which triggered the music. While it is possible to activate this function, we recommend that you follow the instructions in your user manual. Note that for some models, you must unplug the appliance to exit this mode.