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B♭7♯5 Chord on Guitar

B♭7♯5 is the B♭ augmented 7th chord — 4 notes (B♭, D, F♯, A♭) built from the formula 1 3 ♯5 ♭7. Below are playable shapes across the fretboard, the keys it belongs to and the scales to use when soloing over it.

Notes: B♭ · D · F♯ · A♭Formula: 1 · 3 · ♯5 · ♭7Hear it and see it on the fretboard ▸

B♭7♯5: Chord shapes (open & barre)

  • B♭7♯5 – open position×R3♭73♯5open position
  • B♭7♯5 – fret 1×R♯5♭73♯5fret 1
  • B♭7♯5 – fret 66R♯5♭73♯5Rfret 6
  • B♭7♯5 – fret 88××R♯5♭73fret 8

B♭7♯5: Drop 2 voicings

  • B♭7♯5 – bass: ♯512♯5R3♭7××bass: ♯5
  • B♭7♯5 – bass: ♯57×♯5R3♭7×bass: ♯5
  • B♭7♯5 – bass: ♯5××♯5R3♭7bass: ♯5
  • B♭7♯5 – bass: ♭7♭73♯5R××bass: ♭7
  • B♭7♯5 – bass: ♭711×♭73♯5R×bass: ♭7
  • B♭7♯5 – bass: ♭76××♭73♯5Rbass: ♭7
  • B♭7♯5 – bass: R6R♯5♭73××bass: R
  • B♭7♯5 – bass: R×R♯5♭73×bass: R
  • B♭7♯5 – bass: R8××R♯5♭73bass: R
  • B♭7♯5 – bass: 383♭7R♯5××bass: 3
  • B♭7♯5 – bass: 33×3♭7R♯5×bass: 3
  • B♭7♯5 – bass: 311××3♭7R♯5bass: 3

B♭7♯5: Drop 3 voicings

  • B♭7♯5 – bass: 383×R♯5♭7×bass: 3
  • B♭7♯5 – bass: 33×3×R♯5♭7bass: 3
  • B♭7♯5 – bass: ♯511♯5×3♭7R×bass: ♯5
  • B♭7♯5 – bass: ♯56×♯5×3♭7Rbass: ♯5
  • B♭7♯5 – bass: ♭7♭7×♯5R3×bass: ♭7
  • B♭7♯5 – bass: ♭710×♭7×♯5R3bass: ♭7
  • B♭7♯5 – bass: R6R×♭73♯5×bass: R
  • B♭7♯5 – bass: R×R×♭73♯5bass: R

B♭7♯5: Shell voicings (jazz)

  • B♭7♯5 – R-3-75R3♭7×××R-3-7
  • B♭7♯5 – R-3-712×R3♭7××R-3-7
  • B♭7♯5 – R-7-36R×♭73××R-7-3
  • B♭7♯5 – R-7-3×R×♭73×R-7-3

Scales to play over B♭7♯5

Ordered from the most common choice. All of them contain B♭, D, F♯, A♭.

Other B♭ chords

Triads

Sevenths

Sixths

Added

Extended

Augmented 7th chords in other keys

FAQ

What notes are in the B♭7♯5 chord?
B♭7♯5 (B♭ augmented 7th) contains B♭, D, F♯, A♭ — formula 1 3 ♯5 ♭7.
How do you play B♭7♯5 on guitar?
A common shape is x10132 (low E to high E, x = muted string, open position). This page shows more shapes, drop 2, drop 3 and shell voicings in the interactive library.
What scale goes with B♭7♯5?
Good choices to solo over B♭7♯5: B♭ Whole tone, B♭ Altered (Superlocrian), B♭ Phrygian dominant.