on Water Smoke the was composed by the conceptual artist Niko Mihaljević, inspired by the permutation poems of Brion Gysin and the music of Deep Purple. The piece consists of all the permutations of the 12 notes in the opening guitar riff from Deep Purple's Smoke on the Water, originally composed and played by the great Ritchie Blackmore in 1972. There are 479 001 600 unique permutations, each lasting around 8 seconds. The total length of the piece is 130 years and 13 days. The first public performance of the piece started on this website on —. It will end on —.