Depends what you want to destroy. There's an Irish slow air named "Planxty I(E?)rwin" that I believe increases the amount and flow of peace, joy, and love in the world every time it's played. Put together a fiddle, whistle, uillean pipes, etc. and record that on a "loop". We could end war and enmity pretty thoroughly, in time.

Weapon of Misery Destruction, IMO.    Tw

Yeah, yeah -- old hippy. I know. We may never die, except the druggies -- and some haven't faded away yet, either.   Tw