B♭ sixth (B♭6) chord on piano

Looking for the B♭6 chord on piano? It is a major sixth chord (a major triad plus a major sixth), made of four notes: B♭ – D – F – G. The same chord with a different spelling: A♯ sixth (A♯6).

Root position: B♭3 – D4 – F4 – G4

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What the B♭6 chord sounds like

A sixth chord is a major triad with an added major sixth. It has a cheerful, vintage swing colour and often stands in for the tonic in jazz and swing. It has the same notes as the relative minor seventh (C6 = Am7).

Notes of the B♭6 chord

Degree	Note	Interval from the root
1	B♭	root
3	D	major third (4 semitones)
5	F	perfect fifth (7 semitones)
6	G	major sixth (9 semitones)

Root position and inversions

An inversion uses the same notes, with a different note at the bottom. When you change chords, choosing the nearest inversion keeps your hand almost still.

Root position

B♭3 – D4 – F4 – G4

1st inversion

D4 – F4 – G4 – B♭4

2nd inversion

F4 – G4 – B♭4 – D5

3rd inversion

G4 – B♭4 – D5 – F5

Which keys is it in?

The B♭6 chord is built from the notes of these keys (for minor keys, both the natural and the harmonic minor are considered):

B♭ major: I6 (tonic)
E♭ major: V6 (dominant)
F major: IV6 (subdominant)
C minor: VII6
G minor: III6
D minor: VI6

Similar chords and substitutes

If B♭6 is too hard, or you want a different colour in the same spot, these chords are worth a try.

Substitutes (by function)

Gm – relative minor: two shared notes, a common stand-in for the tonic
Dm – mediant minor (iii): two shared notes
B♭maj7 – a softer, jazzier tonic colour
B♭sus4 – suspended version that resolves back to this chord

Same notes

Gm7 – the same notes with a different root

Simpler versions

B♭ – all 3 of its notes are in this chord

Richer versions

B♭13 – the same chord plus 2 colour notes

Frequently asked questions

What notes are in the B♭6 chord?

B♭, D, F, G. The root is B♭; the intervals of the other notes from the root: major third, perfect fifth, major sixth.

How do I play the B♭6 chord on piano?

In root position, the right hand usually plays with fingers 1, 3 and 5 (thumb, middle finger, little finger); four-note chords with fingers 1, 2, 3 and 5. The left hand mirrors this: 5, 3, 1. In an inversion the top or bottom note moves to the other side, so your hand moves less when you change chords.

Why do some songbooks write H instead of B?

In German and Central European notation, H is the note B, and B is the note B♭. So a “B” chord in a German or Hungarian songbook is B♭ in English notation, and an “H” chord is B. Always check which notation your chord chart uses.