The surface resembles a piano keyboard in its order of notes. But instead of black and white keys, the GRAND has “keywaves” made of soft, pliable silicone. Underneath the “keywave surface” are sensors that respond to subtle shifts in pressure and movement. Through intuitive movements such as pressing into the surface continuously, moving fingers from side to side, and moving fingers up and down, music makers can achieve qualities of expression that are associated with acoustic or wind instruments - now possible on a digital instrument that can sound like anything. The GRAND combines artisanship and cutting-edge digital technology. ROLI's engineers hand-craft each instrument in London out of premium materials.