Is palm muting important?
One of the most valuable techniques for playing an aggressive style of guitar is known as palm muting. It can be used on both electric and acoustic guitars to dampen the strings and minimize sustain for a unique effect.
What is fret hand muting?
If we want to cut a note short--or, more often, an entire chord--then we can use the left hand to stop the whole thing from ringing. ... So that's it. It's a subtle technique, but big impact on your control of the guitar's output.