@Bart B. Sweet Shooter, if you mean you're laying a finger on that guitar string then plucking it, yes that will change its resonant frequency. Without that finger on it, I think it makes the same note every time it's plucked.
Bart, this is not the case. Almost and maybe in a perfect world and to all extents and purposes yes absolutely, but not quite in this case.
@coyota1... Thank you.
@BB1... If you're still around... pressure pad+paracord
@603Country... Take a nap. I didn't mean to offend anyone. Sorry.