Guitar skills: 'Add’ chords come in the form of either ‘add9’ or ‘add11’. The name tells you to add either a 9th or 11th interval to a basic major or minor chord. So, Cadd9 is a C chord ...

Use our acoustic guitar chord charts - from basic open chords to the daddy of altered ... The A7, D7 and E9 shapes shown here are all you need for a 12-bar blues improv in the key of A. A13 and E7#9 ...