The title track was originally conceived for the first Piano Day in 2015. Nils Frahm had asked for a contribution, to which Bourne agreed and promptly forgot. 'Isotach ' was written and recorded with a single microphone, the night before Piano Day. It has now been streamed over 275k times on Sound Cloud . 'Candela (For Sascha Heeney)' was released for Piano Day 2017 .The album follows the critical success of the synth-focused works 'moogmemory' and Radioland: Radio-Activity Revisited , a visceral live audio/visual experience created to mark the 40th anniversary of Kraftwerk's seminal album, with Franck Vigorous and video artist Antoine Schmitt.