I just got my pico today and am already having a blast with it. After spending half a day with it I have quickly run into the stumbling blocks involving octaves and accidentals of which I see there are so many other posts about. While I do not expect the same kind of full chromaticism with any note I want in any octave available at a moment's notice like I get on my Yamaha WX-5 wind MIDI controller (the affordances of the pico simply do not allow for this kind of functionality), I do see some potential to remap the existing keys into something possibly more usable utilizing the workbench.
Once I figure out how to use all of the software I intend to take a stab at it myself - but just in case someone else has already done this, I figured I might as well ask. Plus, any additional usability input would be valued.
Here is the meat of my idea. The bottom two keys in the default setup are dedicated to scrolling. While I see some potential use for this, I would be willing to give up this utility in favor of being able to play accidentals. The idea is that two of the 18 keys would be dedicated to half step up/half step down (not sure how the command language in the workbench allows this - maybe the implementation is that it bends the pitch up/down a full half step).
An example of this implementation is to press the half step up key and then press a key that plays the note C, bending it up a half step into a C#. Or, if you pressed the half step down button and the C key, it would play a Cb (aka a B natural).
The question of which two keys to use should be customizable. My personal preference from some fiddling with different ways to hold the instrument would be to make the two central keys the up/down keys, the top hand plays the top 8 keys and the bottom hand plays the bottom 8 keys. This - for me (although it would require further testing) - provides the greatest flexibility. In this manner, it also brings your bottom hand one row of keys closer to the bottom, allowing the little finger easier quick access to the octave keys. Not the most ideal setup (again, I cannot expect the amazing flexibility of my WX-5 here), but the idea to me seems meritorious enough to experiment with.
Any thoughts on this subject would be appreciated.
~Seth