The “A” chord is a part of music in rock as well as in folk or country which makes it a versatile chord. The “A” chord’s sound is so bright and full that this chord is usually taught to beginner guitarists. There are many genres that can be based off of this chord as well. One good thing about the “A” chord is that it is easy to play in the open position and can be used with other chords easily too. This makes it a must know chord for all guitarist.