7sus4 chords
A 7sus4 chord is a 4-note chord — the root plus a perfect fourth, a perfect fifth and a minor seventh above it. It is a sus4 chord — third swapped for the fourth — with a minor seventh added on top.
It has a funky, unresolved sound common in soul and gospel. Below are the 7sus4 chords for all twelve keys, from C to B — pick any chart for its full set of voicings, the piano shape and how it's built.