These are the open position Suspended Chords. In music a Suspended Chord is a chord that has a Root and a Perfect fifth but the third is replaced with either a major second to create a Sus2 chord or a perfect forth to create a Sus4 chord. As suspended chords do not contain a third they are neither major or minor because it is the third that gives a chord it’s major or minor sound. The other effect of removing the third is that it give a chord a feeling of tension and so suspended chords need to resolve to another chord containing a third. Below is a table of the of the chords above with notes that make them.
|Sus2 Chord||Root||Major Second||Perfect Fifth|
|Sus4 Chord||Root||Perfect Forth||Perfect Fifth|