The greatest musical instrument ever made. A good guitarist can be easily identified by letting them tell you what music they listen to. They need not play for you. If a person listens to death metal, emo, screamo, and grunge they can be brushed off as poor players because they can only play a few power chords. If a guitarist listens to music such as Jimi Hendix
, Led Zeppelin
, Stevie Ray Vaughan
, Pink Floyd
, and other old rock bands they are most likely good guitarists or are at least on the right track in learning to play the instrument. Most teenage boys own a guitar though stopped playing after picking it up and finding out it takes a hell of a lot of hard work to make any progress with it. And I don't mean to sound sexist or anything, but females CAN NOT play.