i'm on this website for way longer than i should be

Written by Icelandic composer Jón Leifs in 1964, the piece called Hekla, Op 52, requires four sets of rocks hit with hammers, steel plates, anvils, sirens, cannons and metal chains to play.

There is a finnish battle cry from World War 2 called "Tulta munille" that means "fire at their balls".