The B Suspended 4th chord is a three-note chord made up of B, E, and F♯. It is built from a root, perfect fourth, and perfect fifth.
Construction
| Note | Interval | Degree |
|---|---|---|
| B | Root | 1 |
| E | Perfect 4th | 4 |
| F♯ | Perfect 5th | 5 |
B Suspended 4th Inversions


| Position | Notes |
|---|---|
| Root Position | B – E – F♯ |
| 1st Inversion | E – F♯ – B |
| 2nd Inversion | F♯ – B – E |
Key Signature
A Suspended 4th chord is built from symmetrical or ambiguous intervals, so it doesn’t belong to a single key and has no key signature of its own.
Same Notes, Other Names
The notes B – E – F♯ aren’t exclusive to this chord. Depending on which note is the bass and how the chord functions, the same pitches also spell: