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New Released in April 2026

B Augmented Chord on Piano (Baug)

The B augmented chord (Baug) on the piano has three notes: B, D#, F##. It is a major triad with a raised fifth, formula 1 3 #5, built from two major thirds. Below: the keyboard, the three positions, how it compares with B and Bm, and where it goes next.

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Baug B D# F##

Baug on the keyboard: three positions

Move the lowest note up an octave to reach the next position.

Baug B D# F##

Root position: B D# F##

Baug D# F## B

1st inversion: D# F## B

Baug F## B D#

2nd inversion: F## B D#

  • Root position: starts on B, a white key; black keys: D#
  • 1st inversion: starts on D#, a black key; black keys: D#
  • 2nd inversion: starts on F##, a white key; black keys: D#

Four triads on B

One key changes and the chord changes family.

ChordNotesThirdFifth
B B D# F#major 3rdperfect 5th
Bm B D F#minor 3rdperfect 5th
Bdim B D Fminor 3rddiminished 5th
Baug B D# F##major 3rdaugmented 5th

What Baug does in music

  • Baug is the III+ chord in the harmonic minor scale of G# minor.
  • Its thirds are equal, so Baug, Ebaug and Gaug use the same three keys: the root is whichever note you treat as home.
  • A common move is B → Baug → E: the raised fifth F## pushes up to G#.

E · B

ChordRunner showing a chord block while hands play the piano

Train Baug in a game

In ChordRunner Baug rides towards your runner between other chords: play it in time. MIDI keyboard or microphone, both work.

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All piano chords · Augmented chords explained

Common questions

What notes are in the B augmented chord?

Baug has three notes: B, D#, F##. Root, major 3rd and augmented 5th (formula 1 3 #5).

What is the difference between Baug and B?

One note. B has F# on top; Baug moves it to F##. The new fifth is what gives Baug its floating, unresolved sound.

Where does Baug go?

Baug is the III+ chord in the harmonic minor scale of G# minor. Its thirds are equal, so Baug, Ebaug and Gaug use the same three keys: the root is whichever note you treat as home.

Can I practise Baug with a MIDI keyboard or microphone?

Yes. ChordRunner detects a USB MIDI keyboard automatically and also hears an acoustic piano through the microphone. Baug counts in any position, as long as B, D#, F## sound together.

Your instrument is the controller.

ChordRunner is a browser game that teaches piano and guitar chords: a chord appears on screen, you play it on a real instrument, and your runner jumps. MIDI keyboard or microphone, both work.

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