Speaking as a guitar and piano player. I can do things on guitar and piano that are fairly easy, but look very impressive to someone who doesn’t play the instrument. You actually need to play an instrument before you can judge how good someone is accurately.
(Obviously, it’s pretty obvious if someone is distinctly bad. But distinguishing different levels of “good” is hard.)
Speaking as a guitar and piano player. I can do things on guitar and piano that are fairly easy, but look very impressive to someone who doesn’t play the instrument. You actually need to play an instrument before you can judge how good someone is accurately.
(Obviously, it’s pretty obvious if someone is distinctly bad. But distinguishing different levels of “good” is hard.)