Hello, I've been thinking about the idea of cording like John mentioned in another post. The idea is to extend the range in monophonic mode. I have came up with this : http://dl.dropbox.com/u/149476/pico_cording.png
The basic idea is that you can reach semitones in a major scale for each note. The layout seems quite logical to me and easy for beginners. Let me know what you think ! Thanks !