In blues ‘dominant’ 7 chords (A7 or D7 for example) are more common than basic major, minor and sus chords. The A7, D7 and E9 ...

Use our acoustic guitar chord charts - from basic open chords to the daddy of altered tunings and many points ... Em7 and Cadd9 are widely used, Em9 and A6sus2 are rarer - and both have a lush, ...