Bar chords are a great way for beginning or even experienced guitar players to play new music, learn new chords, and diversify the chords that they are already familiar with.
Bar chords are unique to the guitar.
They provide a guitar player with the ability to play nearly any chord that can be played in the open position on other parts of the neck.
  Playing bar chords can be a bit tiring when first starting out.
You may notice a buzz in the strings in the beginning until you build up your hand strength.
This is normal and with a little bit of practice you will find yourself playing songs in no time.
Many popular songs utilize bar chords to make the songs more dynamic.
Jimi Hendrix used bar chords and intricate melodies to create many of his unique sounds.
  During the 1990's, bar chords where a staple of alternative rock.
Bands from Nirvana to Pearl Jam and many others primarily used bar chords to write their guitar songs.
Bar chords are popular in rock and pop music because of the diversity in sound and percussive rhythm that they produce.
  The two most common bar chords are variations of A and E.
These bar chords are more commonly used in music like country, rock and blues.
  Bar chords are still extremely popular with guitar players across a wide genre of music.
Learning to play a bar chords allows a guitar player to literally play dozens of guitar chords using just a few different shapes up and down the guitar neck.