About the Bsus4 chord
To play B suspended 4th, use the first shape above. Use your index finger to barre the 2nd fret across the E and A strings. Place your ring finger on the 4th fret of the G string and your pinky finger on the 4th fret of the C string. Strum all four strings and check that each one rings cleanly.
Root
B
Quality
Suspended 4th
Notes
B · E · F#
How the Bsus4 chord works
B
Root(1)
The home note. It gives the chord its name.
E
Perfect fourth(4)
A suspended fourth that replaces the third.
F#
Perfect fifth(5)
Adds strength and stability.