first, check ur memory, which is ur RAM, then check ur processor, thats if u dont use a gigapro which carries an embedded processor on the motherboard, then take a peek at ur VGA card, probably gone bad, u culd do a swap of any of these with compatible spares if u have, but basically check ur manual ;for the specific bios beep( which is the music sound u heard) for specific hardware probs, u culd also do a search on the internet for bios beeps for different motherboards...lotsa luck.