Wicki - not wiki

Another soupçon of useful code from the SC-Users list, a Wicki keybord, as used by the Wicki system.
What's the Wicki system? I'm not entirely sure, but it seems to be a way of learning to play music with a type writer style keyboard. There's some background info available here and here.
This bit of code is a class that creates a Wicki keyboard, it is a bit long so I won't reproduce it on this blog, but you can download it here, along with a bit of test code. You can use the keyboard to record and playback sequences of notes, which are stored in an array, probably easier than typing frequencies or midi values directly into patterns and do things like transpose the entire sequence.
As with all SC classes you'll need to put it in the extensions folder and recompile the language before it'll work. The wickiTest file in the zip shows of some of the class methods, but it doesn't mention the startRecording and stopRecording methods. If you want to record an a array of notes you'll need to set it up by doing something like
m.startRecording
and then
m.stopRecording
when you're done.