This was an introduction about chords in open G tuning This video could be recommended if you want to learn more chords and ideas on how to apply them If you want to go more into depth of this particular guitar tuning, see Essential Chords in Open G Tuning with over 300 chord diagrams (ebook with pdf chord charts)This chord exactly corresponds to a sus9 chord 9sus, 7sus4(9) without the 5th being played (normally the 5th isn't played with that chord on guitar anyway) Thus C / D equals a D sus9 chord D 9sus, D 7sus4(9) Especially in pop music that type of chord is often used to replace a dominant 7th chord So G 7 is often replaced by F / GSep 10, · The chord is written to the left of the slash, with the bass note to the right C/G has the same notes as a C major chord but the lowest note has to be a G, as opposed to a normal C major chord where the C is the bass note It is mostly used as a How To Play G Over D Chord On Guitar G D Youtube G over a guitar chord