In E.. I can fake my way through any song with these chords..
022100, 044200, 066400, x02200, x24400, x46600, 099800, 079900
I think that's right.. don't have a guitar in front of me.. It's just a simple walk up 8 chords with root notes in the E major scale.. But on an acoustic, the way they ring out is great and between those and a capo, it's real easy to fake your way along with keyboardists and their crazy chords