A chord is a group of three or more notes that are played together. Chords are used to accompany a singer, or an instrumentalist who is playing the melody of song.
The most common types of chords are:
From these chords other chords called extended chords are formed. These chord types are also quite common.
Here are four other chord types used in Pop/Rock music. Although less common you will come across them.
For Jazz and Classical music more complex chord types can be used. The chord shapes for these chord types are generally more difficult to play. The most important of these chord have been included in this book.
For playing Rock, Pop and Country styles of music you should be familiar with the 10 chord types listed above.