B flat augmented guitar chord (Bbaug)
Also written A#aug (A sharp augmented)
An augmented chord stacks two major thirds, with an augmented fifth. Strange and floating, it often works as a transition between two chords.
Positions and fingerings
Position 1 fret 1
Position 2 fret 6
Position 3 fret 8
× muted string · o open string · numbers: fingers (1 index, 2 middle, 3 ring, 4 pinky)
Chord notes
| Note | Interval |
|---|---|
| B♭ (B flat) | root |
| D | major third |
| F♯ (F sharp) | augmented fifth |
Formula: 1 – 3 – #5 · B♭ – D – F♯
A progression with this chord
The augmented chord connects the major chord to the chord built on the fourth.