all rumor and speculation aside- just the facts

Fact- sonic noises- orpheus's lyre was "place amongst the star" according to myth

in other words aliens took an earth sonic weapon to mars

Fact- Rumbleings- Loki writhing in hell - return of surtur and the world burns in fire

Fact- change the myth part of the stories to like nature and sonics and - wa la- same thing- vibration weapons and volcanos

Fact- The Hum- humming is used to help a singer in scales.
they will go like ah ah ah ah ah , and then hum it
this is to help the inner sonic vibration needed for when alines attack or somethingp- earth ahs air- and sonic weapons