arranged as 2D or 3D arrays; Keyboards ergonomically organised for playing chords or for transposing, e.g. Janko keyboard

Full Title

Input/output interfacing specifically adapted for electrophonic musical tools or instruments > User input interfaces for electrophonic musical instruments > Keyboards, i.e. configuration of several keys or key-like input devices relative to one another > arranged as 2D or 3D arrays; Keyboards ergonomically organised for playing chords or for transposing, e.g. Janko keyboard