Amongst the pictures from Martyn Heyne’s childhood that you’ll find in his parents’ photo collection is one of him, aged two, strumming a canoe paddle like a guitar. If ever there were proof of the man’s natural born urge to make music, it’s this. Heyne’s approach to his art has always remained idiosyncratic, too: when he began teaching himself the piano, he developed a system based around the symmetry of the keyboard rather than its scales.