Suspended Chords
With a suspended chord, where the third would normally be in a major or minor triad, this is replaced by a perfect fourth or a major second. The fourth is the more commonly used.
E sus4
OOOOOO
1
2
3
4
A sus4
XOOOOO
1
1
2
3
D sus4
XXOOOO
1
1
3
4
C sus4
XOOOOX
1
3
4
1
D sus2
XXOOOO
1
1
2