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Bb Minor Major 7th (Bbm(maj7))

Also written as A# Minor Major 7th (A# and Bb are the same key).

Download MIDI
1+b3+5+7
E#3A5A#1C#2
4 4

Notes in Bb Minor Major 7th

A# (root)C#E#A

Inversions

Same notes as Bb Minor Major 7th, with a different chord tone as the lowest note. Useful for smoother movement between chords instead of jumping around the keyboard.

Root position

A# in the bass

E#3A5A#1C#2

1st inversion

C# in the bass (Bbm(maj7)/C#)

E#2A4C#1A#5

2nd inversion

E# in the bass (Bbm(maj7)/E#)

E#1A2A#3C#5

3rd inversion

A in the bass (Bbm(maj7)/A)

A1E#5A#2C#3

Open voicings

A close-position chord like Bb Minor Major 7th can sound cluttered in the middle of the keyboard. Jazz players open it up by dropping one note down an octave, spreading the same notes wider without changing the chord.

Drop 2

E# on the bottom

E#3A5A#1C#2

Drop 3

C# on the bottom

E#3A5C#2A#1

Play A#, C#, E# and A together and you get Bb Minor Major 7th.

A rarer hybrid: a minor triad topped with a major seventh instead of the expected minor one. It's moody in a very specific, unresolved way, and it's the sound most associated with spy-movie tension and certain noir moments in jazz and musical theater where a minor chord needs to feel unsettled rather than simply sad.

Related chords

BbmBbm7Bbmaj7

Difficulty: Advanced. Category: Seventh chords. Click any highlighted key on the diagram above, or tab to it and press Enter, to hear that single note. Inversions mark the bass note with a contrasting outline.