B Suspended 4th (Bsus4)
1+4+5
Notes in B Suspended 4th
B (root)EF#
Inversions
Same notes as B 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
B in the bass
1st inversion
E in the bass (Bsus4/E)
2nd inversion
F# in the bass (Bsus4/F#)
The notes B, E and F# make up B 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.