I just discovered this program & think it's very cool! The more features you add, the more versatile it becomes, although it gets farther from its namesake.

I have a question about the keyboard mode. Is that a display feature? Or, to use a stringed instrument metaphor, does that switch between frets (discrete pitch adjustment) and fretless (continuous pitch adjustment) modes? If the latter, where is that switch? I'm using v1.7.

EDIT: Also, is there documentation for this app besides this thread and the Theremin home page? If not, I volunteer to create a wiki page that pulls a lot of this together.