You might not expect it when listening to their debut album Dilation (2015), but all the sounds and textures that Grandbrothers employ come from a grand piano, using a laptop and a system of electromechanical hammers that the German duo developed themselves. The Grandbrothers are a jazz pianist and a synthesizer builder, who create layered and atmospheric neo-classical compositions by unlocking a new and profoundly modern way to play the piano.