Just want to say I am learning a lot. Light bulbs go off almost every day. I've most recently been working through the Fretboard Wizard and what an eye opener that has been. In fact, I recently look up a song's chords that I wanted to play. It was in the key of F. However, the youtube video I was watching it was playing in a different key. Because of Fretboard wizard, I was able to pick out the other key and now I can play the song in the original F and the key of G from the youtube. In fact, the key of G is ALOT easier to play and matches my voice better. How cool is that!