In early 2010, German pianist Hauschka and Icelandic experimental cellist Hildur Guðnadóttir were invited to perform together as part of Arctic Circle’s Bubbly Blue And Green festival, themed around water, which took place at King’s Place, London over the course of four days. For the occasion, the pair had concocted a series of pieces inspired by various Pantone shades of blue, from near-black to aquamarine, each evoking a particular colour of the ocean. Read more on Last.fm