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 ...

Get your posture right and your fretting hand (the hand on your guitar's neck) will have the best reach ... Use the very tip of the pick for plucking single notes. It helps with accuracy.

The other main component is the guitar neck. This was actually a Squire Affinity ... This setup allows [Gr4yhound] to adjust the finger position after the note has already been started.