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.
North Korea owes Sweden €300m for 1,000 stolen Volvos and every 6 months Sweden sends them reminders.
Iceland: "You continental fools think I'm small and powerless, but I'll show you the power of my volcanoes! Mwahahahaha!"
Sweden: "Argh! That giant ash cloud! This will ruin all the flight schedules for weeks!"
Norway: "Cancelled flights? Airplanes burn a lot of fuel... I hope this won't drop oil prices."
Denmark: "Ooh... That deep red sunset sure is beautiful. The colour of my flag."
Finland: "There's something in the air, or maybe not. Need another beer to be sure."