About the Gsus4 chord
To play G suspended 4th, use the first shape above. Place your index finger on the 2nd fret of the C string, your middle finger on the 3rd fret of the E string, and your ring finger on the 3rd fret of the A string. Leave the G string open. Strum all four strings and check that each one rings cleanly.
Root
G
Quality
Suspended 4th
Notes
G · C · D
How the Gsus4 chord works
G
Root(1)
The home note. It gives the chord its name.
C
Perfect fourth(4)
A suspended fourth that replaces the third.
D
Perfect fifth(5)
Adds strength and stability.