B suspended second chord (Bsus2)

The B suspended second chord (Bsus2) is a suspended chord: B, C♯ and F♯ (root, major second and perfect fifth). It has no third, so it is neither major nor minor.

It is the Isus2 in B major and the IVsus2 in F♯ major, and it usually resolves to the major or minor chord on the same root.

Below: voicings, notes on the fretboard, ukulele, piano, inversions and progressions.

How to play B suspended second on guitar

There is 1 guitar voicing.

Frets from the 6th string to the 1st: x = not played, 0 = open string.

  • Voicing 1: x-2-4-4-2-2, barre at fret 2, with B in the bass (fingers x-1-3-4-1-1).

Notes of the B suspended second chord on the fretboard

B suspended second has 3 notes: B, C♯ and F♯. This is where they fall on each string, from the nut to the 12th fret (fret number in parentheses):

  • String 6 (E): F♯ (2) · B (7) · C♯ (9)
  • String 5 (A): B (2) · C♯ (4) · F♯ (9)
  • String 4 (D): F♯ (4) · B (9) · C♯ (11)
  • String 3 (G): B (4) · C♯ (6) · F♯ (11)
  • String 2 (B): B (0) · C♯ (2) · F♯ (7) · B (12)
  • String 1 (E): F♯ (2) · B (7) · C♯ (9)

Formula and intervals of B suspended second

Its formula is 1-2-5; in semitones from the root, 0-2-7.

  • B: Root, the note that gives the chord its name
  • C♯: Major second (M2), 2 semitones above B
  • F♯: Perfect fifth (P5), 7 semitones above B

B suspended second on ukulele

  • Ukulele (G C E A): 4-1-2-2; it sounds B, C♯, F♯ and B.

B suspended second on piano

  • Keys: B4, C♯5 and F♯5.

Inversions of B suspended second

Each inversion puts a different note in the bass.

  • Root position: B, C♯ and F♯, with B in the bass.
  • First inversion (Bsus2/C♯): C♯, F♯ and B, with C♯ in the bass.
  • Second inversion (Bsus2/F♯): F♯, B and C♯, with F♯ in the bass.

Keys that use B suspended second

B suspended second appears in 10 major and minor keys.

KeyDegreeFunction
B major (5 sharps)Isus2Tonic
A major (3 sharps)IIsus2Supertonic
F♯ major (6 sharps)IVsus2Subdominant
E major (4 sharps)Vsus2Dominant
D major (2 sharps)VIsus2Submediant
B minor (2 sharps)Isus2Tonic
G♯ minor (5 sharps)IIIsus2Mediant
F♯ minor (3 sharps)IVsus2Subdominant
D♯ minor (6 sharps)VIsus2Submediant
C♯ minor (4 sharps)VIIsus2Subtonic

Progressions with B suspended second

  • Sus2 resolution in B major (Isus2–I): Bsus2 – B

Frequently asked questions

What notes are in the B suspended second chord?

B, C♯ and F♯: root, major second and perfect fifth. Its formula is 1-2-5.

Which keys use B suspended second?

Mainly as the Isus2 in B major and the IVsus2 in F♯ major. In total it appears in 10 major and minor keys.

What does “sus” mean in B suspended second?

That the chord is suspended: the third is replaced by another note, leaving B, C♯ and F♯ (root, major second and perfect fifth). Without a third, it can move to either the major or the minor triad on the same root.