Normally
six-stringed, a guitar is extremely easy to play and master, so most (if not all) guitar players are musically illiterate. Being unable to read notes on a five-line staff, guitar players instead invent tabulature, which basically shows exactly where to play the notes.
It is worthy to note that
people with no musical knowledge whatsoever can still play the
music written by supposedly professional "artists", which says a lot about modern
music. No random faggot would be able to play the works of Mozart or Beethoven.
Some versions of guitar even use electricity, these guitars sound even worse than their acoustic counterparts and even waste resources. In my opinion the
people who made electric guitars deserve to be hanged.
Guitar
player: OMG I can strum along to this Metallica song I'm so good!
Me: What note is that you just played?
Guitar
player: Uh, I don't know.
Me: What key is the song in?
Guitar
player: Wtf is a key?
Me: What's the time signature?
Guitar player: ...
Me: You call yourself a fucking musician?