The Celeste Chromatic Double Kalimba by Hugh Tracey is made for ambitious musicians who need more than the pentatonic or diatonic tuning. On the front side of this block kalimba (solid body) you find the keys of the diatonic C major ("white piano keys"). The keys of the pentatonic F# major ("black piano keys") are on the back side. With some practice you can play all kinds of complex melodies on this chromatic kalimba.
This Kalimba is available with pick-up (1/4" phone plug), too.