Eb Suspended 4th (Ebsus4)
Also written as D# Suspended 4th (D# and Eb are the same key).
1+4+5
Notes in Eb Suspended 4th
D# (root)G#A#
Inversions
Same notes as Eb Suspended 4th, with a different chord tone as the lowest note. Useful for smoother movement between chords instead of jumping around the keyboard.
Root position
D# in the bass
1st inversion
G# in the bass (Ebsus4/G#)
2nd inversion
A# in the bass (Ebsus4/A#)
Play D#, G# and A# together and you get Eb Suspended 4th.
The other suspension raises the missing third up to a perfect fourth, which sits a half step above where the third would normally be. That closeness creates real tension, and it's why a sus4 chord so often falls straight back down into the plain major or minor triad on the same root a beat later.