> By definition, they are not motivated to promote a system where only learning 12 is required.
One might assume from this that professional musicians are not interested in the most efficient expression of their musical voice.
One might assume from this that professional musicians are not interested in the most efficient expression of their musical voice.
The thing is, no matter which keyboard layout you use, there is the same amount of muscle memory required to be learned.
To contrast, a piano requires 12 times as much muscle memory as a Janko keyboard.
Learning to play a piano is hard, and it is made significantly easier by simply changing the physical keyboard layout.
Still waiting for one tiny scintilla of evidence.
That looks like an accordionist's nightmare.