Sus 2 and Sus 4 chords always confuse beginning guitar players. Left is our Sus 4 chart for the beginning player. Generally what is going on the movement of the middle note in the chord up or down one whole step. For the Sus 2 chord you will replace the 3rd note of the chord/scale with the 2 note of the scale. For Sus 4, we replace the 3rd note of the chord/scale with the 4 note of the scale.

Example, the C chord is made of the Root or 1st note, the 3rd and 5th note of the scale. The C scale is C, D, E, F, G, A, B, and C. The C chord is made up of the notes C, E and G. For Sus 2, E is replaced with D and for Sus 4, E is replaced with the F note.

The Guitar Sus 2 chord chart is included in our book Essential Chords for Guitar, Mandolin, Ukulele and Banjo