Isomorphic Keyboards

Some articles on isomorphic keyboards, keyboard:

Dynamic Tonality - Isomorphic Keyboards and Tuning Invariance
... Isomorphic keyboards have the unique properties of transpositional invariance and tuning invariance when used with rank-2 temperaments of just intonation ... Of the various isomorphic keyboards (e.g ... the Bosanquet, Janko, Fokker, and Wesley), the Wicki keyboard is optimal for dynamic tonality ...