If there’s one thing you can do to take your songwriting to the next level, it’s getting to grips with new chords. Use our acoustic guitar ... for a 12-bar blues improv in the key of A. A13 and E7#9 ...

Use our acoustic guitar ... sus chords. 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 have an edgier sound and work in jazz just ...