About the Gsus2 chord
To play G suspended 2nd, use the first shape above. Place your index finger on the 2nd fret of the C string and your middle finger on the 3rd fret of the E string. Leave the G and A strings open. Strum all four strings and check that each one rings cleanly.
Root
G
Quality
Suspended 2nd
Notes
G · A · D
How the Gsus2 chord works
G
Root(1)
The home note. It gives the chord its name.
A
Major second(2)
An open-sounding second that replaces the third.
D
Perfect fifth(5)
Adds strength and stability.