The following example is called a chord progression, meaning a series of chord changes (in this case – between C and D7). Chord progressions are common in all styles of music, and the more you know, the more songs you will be able to play.
When changing between the C and D7 chords, do not move your first finger as it is common to both chords. The first finger acts as a pivot around which the other fingers move. This will make the chord changes easier.
G7
To play the G7 chord, place the first, second and third fingers of your left hand as shown in the diagram. Strum all six strings.
The following chord progression contains the three chords you have learnt so far. Remember to use the pivot finger when changing between C and D7.
The following chord progression contains two chords in each bar. Each chord receives two beats.