B♭m6 chord on guitar
B♭m6 (B flat minor 6th) is a minor 6th chord built on B♭. It has 4 notes, B♭, D♭, F and G, and its formula is 1 ♭3 5 6.
Notes and intervals of B♭m6
From the root upwards, B♭m6 contains root (B♭), minor 3rd (D♭), perfect 5th (F) and major 6th (G). Those intervals give the chord its colour: the formula 1 ♭3 5 6 works the same way in every key, so once you know it for B♭ you can build the chord on any note.
| Degree | Interval | Note |
|---|---|---|
| 1 | root | B♭ |
| ♭3 | minor 3rd | D♭ |
| 5 | perfect 5th | F |
| 6 | major 6th | G |
How to play B♭m6 on guitar
The first shape above reads x 1 3 x 2 3 from the low E string to the high E string (x means you do not play that string, 0 is an open string). The lowest note you play is B♭. The other diagrams show the same chord higher up the neck: pick the one closest to the chords before and after it in your song.
This is a barre or movable shape: keep your index finger straight and close to the fret, and press with the side of the finger rather than the flat pad.
Which keys use B♭m6?
B♭m6 is not built from the notes of a single major key, so it usually appears as a colour chord: a borrowed chord, a passing chord or a suspension that resolves to the next chord.
Scales to play over B♭m6
To improvise over B♭m6, start with B flat melodic minor scale. All of these scales contain every note of the chord: B flat melodic minor scale and B flat Dorian mode. Aim for the chord notes on strong beats and use the other notes to move between them.
About minor 6th chords
A minor triad with a major sixth added: 1 ♭3 5 6. Dark but bittersweet, mysterious, a little film noir. The major sixth and the minor third form a tritone, which gives the chord a gentle, unresolved tension. That major sixth is the colour note of the Dorian mode. For example Am6: A C E F♯.
Use it as a minor tonic (im6) in jazz, gypsy jazz, bossa nova and tango, often as the final chord. A classic line descends inside one minor chord: i, im(maj7), im7, im6. It also replaces iv in minor keys (ivm6), and it has the same notes as the m7♭5 on its sixth (for example Am6 and F♯m7♭5).
Open Am6 (x02212) and Dm6 (xx0201) are easy. The movable shapes have the root on the 6th string (5th string muted) or on the 5th string. Gypsy jazz players use compact m6 shapes on the middle strings, often with the sixth on top, and slide them chromatically into the next chord.
The 6 in m6 is a major sixth (F♯ in Am6), not a minor sixth (F): Am(♭6) is a different, darker sound. Do not confuse m6 with m7 either: the seventh (G in Am7) is one semitone above the sixth. And m6 is not the same as a minor chord with the sixth in the bass, which is a slash chord.
Frequently asked questions
What notes are in the B♭m6 chord?
B♭m6 (B flat minor 6th) contains B♭, D♭, F and G. In intervals: root (B♭), minor 3rd (D♭), perfect 5th (F) and major 6th (G).
How do you play B♭m6 on guitar?
The easiest shape is x 1 3 x 2 3, from the low E string to the high E string. This page shows 3 positions with finger numbers.
What scale goes with B♭m6?
B flat melodic minor scale fits B♭m6 best. Other scales that contain all its notes: B flat Dorian mode.
What key is B♭m6 in?
B♭m6 does not belong to a single major key. It is used as a colour chord that borrows notes from outside the key.
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