A suspended chord (or sus chord) is a musical chord in which the (major or minor) third is omitted and replaced with a perfect fourth or a major second. ... When using popular-music symbols, they are indicated by the symbols "sus4" and "sus2".
What is suspended chords in piano?
Suspended Chords (or Sus Chords) are chords where the 3rd has been replaced by a 2nd or (usually) 4th. These create a much more ambiguous and floating sound. The sus4 chord is much more common than the sus2 chord, so the '4' is often dropped.
What does a suspended chord do?
They work as interesting substitution chords, they can smooth out chord progressions, and they can add unexpected tension to your music. A suspended chord is neither major nor minor because the third has been replaced with either a fourth or a second. For example, a Csus4 is spelled C-F-G, and a Csus2 is C-D-G.