B♭ Major Sixth Chord

Chord Tones: B♭ Major Sixth Chord

Symbol: 6, maj6 — Formula: 1-3-5-6

Chord Notation

Roman numeral (e.g. I, IV, V) and Nashville Number notation are key-dependent. See Keys pages for chord function within specific keys.

Inversions

Harmonic Function

The B♭ major sixth chord commonly functions as the subtonic (♭VII) in C major or subdominant in F major. Its harmonic role varies by key — in major keys it provides stable harmonic grounding.

The major sixth chord adds a major sixth to the major triad. It has a warm, pleasant quality with a hint of jazz sophistication, often used as a substitute for the plain major chord. The B♭ Major Sixth Chord specifically contains 4 notes: B♭, D, F, G (formula: 1-3-5-6). On piano, Bb-rooted chords start on a black key and create hand shapes that jazz pianists find ideal for voicing seventh chords and extended harmonies. Jazz standards, swing, and big band charts are heavily weighted toward Bb because it allows horn sections to play in their most comfortable range.

Common Progressions

The B♭ Major Sixth Chord frequently appears in these progression patterns (shown in Roman numeral notation relative to key):

• I6-IV-V
• I6-ii-V

Songs Featuring the Major Sixth Chord

Well-known songs where the B♭ Major Sixth Chord — or this chord type — plays a prominent role:

• My Way – Frank Sinatra
• The Girl from Ipanema – Jobim
• Take Five – Dave Brubeck

Tuning Frequencies Across Temperaments

Frequencies shown at A=440 Hz. View full temperament data for any note.

Scales Containing the B♭ Major Sixth Chord

These scales include the B♭ Major Sixth Chord as a diatonic or characteristic chord: