MK149 whole tone keyboard adaptor

Converts the MK 149 a popular MIDI controller into a Janko system wholetone keyboard. One scale form is good for all keys, cut down practice time x 12 and transpose at will! Try it first on http://improvise.free.fr/beanbut/bean.htm. You will need to bend metal bits inside the MK149, so this operation is not for the faint hearted and is pretty much irreversible.

This model covers one octave. For a 49-key keyboard you will need 4 of these plus one spare key (see my shop for that)

Kind words from a customer:

”There's no doubt in my mind that there's nothing I can't play on this keyboard.”

”It's so wonderful and strange to be able to play something in all 12 keys, and to hear it in all 12 keys as well. A week in and I'm playing stuff that took me 3 months to learn on piano”