It's not common to adjust dials, especially during songs. Between songs is less rare but still uncommon. A significant number of bands do have a rhythm guitar t

It's not common to adjust dials, especially during songs. Between songs is less rare but still uncommon. A significant number of bands do have a rhythm guitar that's going almost non-stop. I take a picture of every pedal board I see at every concert I go to, so I'm actively looking for this stuff. Some people even tape the dials so they aren't bumped during shows.