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.
@Impkat That`s not me! That`s my crazy imagination!
Also... I was listening to song "Let it go" when i found this art. And my crazy imagination gave me that idea
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