Bbmaj7 Major 7th Chord

A major triad with a major seventh. Warm, sophisticated sound used in jazz and R&B.

Bbmaj7 Chord — Quick Answer & Harmonic Definition

The Bbmaj7 (Major 7th) chord consists of the notes Bb, D, F, A. It is constructed from the root note Bb using the major 7th interval formula (0–4–7–11 semitones).

Formula: 0 – 4 – 7 – 11
Notes
Bb – D – F – A
Intervals (semitones)
0 – 4 – 7 – 11
Type
7th Chord

Bbmaj7 on Piano

Press highlighted keys simultaneously to play the Bbmaj7 chord.

R
A# (Root (R))
2
D (Major 3rd)
3
F (Perfect 5th)
4
A (Major 7th)

Bbmaj7 on Guitar

Fret numbers (low E → high e string): x13231 (x=mute, 0=open)

x
E
1
A
3
D
2
G
3
B
1
e

Interval Analysis

Degree Interval Name Semitones Note in A#
Root Root (R) 0 A#
3rd Major 3rd 4 D
5th Perfect 5th 7 F
7th Major 7th 11 A

About the Bb Major 7th Chord

The Bbmaj7 chord (Bb Major 7th) consists of 4 notes: A#, D, F, A. A major triad with a major seventh. Warm, sophisticated sound used in jazz and R&B.

To build any major 7th chord, apply intervals of 0, 4, 7, 11 semitones above the root. Starting from A#: the notes land on A#, D, F, A.

Playing Bbmaj7 on Piano

Press A#, D, F, A simultaneously. In root position, A# is lowest. First inversion places D in the bass for a lighter sound; second inversion uses F as the bass note.

Common Chord Progressions Using Bbmaj7

  • I–IV–V: Bbmaj7 – D#maj7 – Fmaj7 (blues and rock)
  • I–V–vi–IV: Bbmaj7 – F – Gm – D# (pop staple)
  • I–vi–IV–V: Bbmaj7 – Gm – D# – F (50s progression)

The Bbmaj7 Chord in Context

The Bbmaj7 (Major 7th) chord features a distinctive a major triad with a major seventh. warm, sophisticated sound used in jazz and r&b. built from the intervals 0–4–7–11. It provides rich harmonic color and tension across pop, jazz, classical, and contemporary compositions.

Other A# Chords

A#
Major
A#m
Minor
A#7
Dominant 7th
A#m7
Minor 7th
A#dim
Diminished
A#aug
Augmented

Major 7th Chord in All 12 Keys

Cmaj7 C#maj7 Dmaj7 D#maj7 Emaj7 Fmaj7 F#maj7 Gmaj7 G#maj7 Amaj7 A#maj7 Bmaj7
Virtual Piano
Play Bbmaj7 on piano
Virtual Guitar
See on the fretboard
A# Scale
Notes that fit Bbmaj7
Songs
Find songs using Bbmaj7

Knowledge Base & FAQs

Bbmaj7 Chord — Frequently Asked Questions

Everything you need to know about our browser-based Web Audio engine, instruments, and music theory workspace.

What notes are in the Bbmaj7 chord?

The Bb Major 7th chord contains: A#, D, F, A.

These notes are derived by applying the major 7th interval formula (0–4–7–11 semitones) to the root note A#.

What is the Bbmaj7 chord used for?

A major triad with a major seventh.

Warm, sophisticated sound used in jazz and R&B. The Bbmaj7 chord is used across pop, rock, jazz, and classical music. As the I chord in the key of A# major, it functions as the most stable resting point in progressions.

How do you play Bbmaj7 on piano?

On piano, play A#, D, F, A simultaneously.

In root position, A# is the lowest note. Inversions move the bass note up — first inversion has D lowest, second inversion has F lowest.

How many notes are in a major 7th chord?

A major 7th chord has 4 notes: A#, D, F, A (in A#).

It is a 7th chord, extending beyond the basic triad.

What is the difference between A# major and A# minor?

The A# major chord (A#–D–F) uses a major third (4 semitones), giving it a bright, happy sound.

The A# minor chord (A#–C#–F) uses a minor third (3 semitones), giving it a darker, emotional sound.

What key does Bbmaj7 belong to?

Bbmaj7 naturally serves as the I chord in the key of A# major.

It also appears as IV in the key of F major, and as V in the key of D# major.

Can I play Bbmaj7 on ukulele?

Yes.

The ukulele uses GCEA tuning with 4 strings. The Bbmaj7 chord notes (A#, D, F, A) can be fretted on a ukulele, though the shapes differ from guitar due to the 4-string layout and shorter scale.

What chords go well with Bbmaj7?

In the key of A# major, Bbmaj7 pairs naturally with D# major (IV), F major (V), and Gm (vi).

The classic I–IV–V (Bbmaj7–D#–F) is the foundation of blues, country, and rock.

What is a chord inversion of Bbmaj7?

An inversion places a non-root note in the bass.

Bbmaj7 root position: A# in bass. First inversion: D in bass. Second inversion: F in bass. Inversions create smoother bass line movement without changing the harmony.

How do I memorize the notes in a major 7th chord?

Remember the formula: 0–4–7–11 semitones from root.

For Bbmaj7: start on A#, add 4 semitones, then 7 semitones, then 11 semitones. Practicing this across all 12 roots builds instant recognition of any major 7th chord.