Dominant 7th

Hi,

Dominant 7th Chord is frequently used in many genres especially in Blues.








The above example is the pattern and notes for G dominant 7th chord.
All you need to do is study the fingering pattern and you can form other dominant chords easily.

Formula for Dom7th chord - 1 3 5 b7

G7 chord consist of G, B, D, F.

As for finger position you can try:
R (middle)
3 (index)
5 (last)
b7(middle)

Have fun.