Well i am a very new player and I am just beginning to learn about scales. My one friend who is a very good guitarist said something about modes... I had no idea what he was talking about but he couldn't explain it to me. What are they? What are they for? Also, if it isn't to much could someone tell me about harmonics? I thought you could only play them on like the 5th, 7th and 12th fret (well over top of it) but my friend said they were just "false" harmonics... again I didnt understand. Any help is appreciated. Thanks.