A brief addendum. If you try this, you will be amazed at how stunned most kids are that their favorite songs are playable, and that there are about 5 chord sequences to learn, and maybe 4 keys. They have no idea that it is as simple as it is. They tend to think that most songs belong to some unbelievably complex distant universe - I assume this is because no one teaches music anymore in schools. And they taught it badly before. I once explained the 50's "Duke of Earl" progression (the old I-VI-II-IV-V-I) for a group of 13-14 year old kids, and they fell all over the floor laughing hysterically. They didn't believe that it was really just like that, and that you could do that so easily, and write other songs using the same sequence. They made me do it over and over again for hours. We sat around making up new do-wop songs for about half a day. They love -- LOVE! -- this stuff. Yours, Peter