Thanks Mooh, I hadn't thought of those Zep ones, but you're right! I love that little sliding Am7 thing at the beginning of Gallows Pole. But my favorite Zeppelin song is almost on big riff..."The Rain Song". Such aching...such beauty. It takes a lot of retuning your guitar to play it right, but it's worth it. When you finish playing it, it's one of the times when you stop and sigh and thank God or whoever you want, for letting such music be created. It makes you feel good to know that such musical tenderness can be harnessed by a collection of wood and steel. Amazing.

--Matt