There is something to pantom ringing within music.. A lot of hip hop songs are hitting the same frequencies of standard ring tones.. This is a trick to get you to listen to it closely.. Jermaine Durpi (a rapper/producer) has commented about it on MTV a few times.
Ever drive along with the radio and think you heard an American police siren? It's the song hitting those same frequencies tricking you so you pay more attention to the radio.
Lots of times I hear the message received IM chime and my speakers aren't even on or they on but my instant messenger is off.. Freaky stuff.. I hope they don't turn into voices.
