What is bending behind the nut?
push on your strings behind the nut
push down here:
You pluck a few strings, push down on the strings behind the nut
Yeah, it's a good way of bending open (not fretted) notes.
John5 is great at playing behind the nut.
^ I love that video
Its like a whammy bar but for cheapos like me.
Yeah bending behind the nut is commonly used in country/bluegrass. It is also used in Led Zeppelin's Heartbreaker solo by Jimmy Page.