be present, so the root can still be found.

Suspended chords are non-tertian chords composed of a traditional triad with a note replacing a note one of the triad's notes, while added note chords are non-tertian chords composed of a traditional triad with an added note. Examples include suspended two chords (i.e., sus2 chords), suspended four chords (i.e., sus4 chords), added second chords