What a lot in this thread. I'm just stumbling around the Mudcat, thought I'd say, "Thanks" to Rick Fielding for that great information. My daughter plays guitar more often than I do, so I'm going to copy that and give it to her.

I play a little, but I've had some problems with painfully dry/cracking skin if I start playing much guitar. I think I prefer keyboard, anyway, and I enjoy my accordion.

But, for the heck of it, I'll mention my crazy 'book,' Three Matrices For Eartraining (copyright 1998 by Ruby S. Really a.k.a. me). It tough reading and probably only means something to me, but, I put it on the web anyway (it don't matter if people think it's crazy; I was labeled crazy a long time ago...I've earned the right).

I'm going to re-post it soon at Themestream.com where I write articles, at least at this time (we'll see if they really do send me that check...), but for now it's here:

http://musicsnake.homestead.com/musicsnake.html

--at least, start there, you'll see the links.

It's applicable to any instrument, but it's weird music theory, not practical moves, really. Anyway, you might get some thoughts from it.