Attention Rock fans..

[kengr]

... it really *is* DEATH metal when the band has a gigawatt speaker stack.

Comments

[stickmaker]

We know that as massive post-fusion stellar masses spiral towards each other they emit gravity waves in the range of human hearing. So, modulate the oscillation of a neutron body or point mass to produce the sound frequencies you want via gravity waves. Simple. :-) (Bonus points if the waves are strong enough to feel, so you don't need hypersensitive laser interferometry to detect them.)