Why does my guitar sound scratchy?
Now, here is why your pots sound scratchy: as time goes on, dust settles inside of your volume & tone controls. Or possible sawdust from when your guitar was built. ... As more and more dust/sawdust gets ground into the wafer, less and less contact happens and your pots get that scratchy sound that you've come to hate.
What does pick scrape mean?
A guitar technique performed by holding the edge of the pick against any one or more of the three or four wound strings and sliding it along the string(s).