Here's some charts I put together for Gdg and DAd open tunings. The charts give the power chord (which can be used for either a Major or minor chord) and the Major, minor and dominant 7 chords, minus the 3rd. The chords may not sound "complete" without the 3rd, but you should still be able to have a lot of fun with these - and you'll still create a good sound.
If you wanna have some fun with these charts, try playing each note individually from low to high, and go from a power chord (Gdg, for example) to a Major 7 (Gdf#) to a dom/minor 7 (Gdf). It'll give you a nice little "ballad style" effect. You could also go one more to Gde which would be a 1-5-6 if you wanted.
There aren't a ton of songs that use this progression, but one that comes to mind off the top of my head is "Raindrops Keep Fallin' On My Head," which starts out G - GMaj7 - G7 (which is another way of writing G dominant 7). It's a pretty unique sounding progression and lots of fun to mess around with.
That is fantastic - there is another chart kickinga round here that has a lot fewer chords and is confusing for newbies like me.
I *knew* there had to be more chords hidden on that stick - your Gdg chart is just what I was looking for and will unlock a whole new set of options/songs for me.
Simple and to the point, just like a cbg. Thanks Michael. I have been using the straight bar, now i can add in the 7th's , who knew.