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B♭ Minor 13th

Also Known As
What are Enharmonics?B♭ / A♯ Equivalent

Hear the B♭ Minor 13th chord played for you.

B♭m13
B♭ – D♭ – F – A♭ – C – E♭ – G
Formula:R-m3-P5-m7-M9-P11-M13
Intervals:P1-m3-P5-m7-M9-P11-M13
Scale Degrees:1-b3-5-b7-9-11-13

Introduction

The B♭ Minor 13th chord is a seven-note chord made up of B♭, D♭, F, A♭, C, E♭, and G. It is built from a root, minor third, perfect fifth, minor seventh, major ninth, perfect eleventh, and major thirteenth.

The Bb Minor 13th piano chord (Bbm13) consists of the notes Bb, Db, F, Ab, C, Eb, G. It is a minor 11th chord with an added major 13th, giving it a dark and sophisticated character often used in jazz ballads and modal jazz. Formula: R-m3-P5-m7-M9-P11-M13 | Scale degrees: 1-b3-5-b7-9-11-13.

Notes

Notes:B♭ – D♭ – F – A♭ – C – E♭ – G

Key Signature

The key of Bb Minor 13th has 5 flats.

B♭E♭A♭D♭G♭

Order of flats

Flats are added in a fixed order — the reverse of the sharp order. Each new flat key adds the next flat on the list.

BEADGCF

Mnemonic: Battle Ends And Down Goes Charles’ Father

Chords in the Key of Bb Minor

These are the diatonic triads built on each degree of the Bb minor scale:

C
D
E
F
G
A
B
C
D
E
F
G
A
B
iB♭ Minor (minor)
DegreeNumeralChordQuality
1iBb MinorMinor
2ii°C DiminishedDiminished
3IIIDb MajorMajor
4ivEb MinorMinor
5vF MinorMinor
6VIGb MajorMajor
7VIIAb MajorMajor

Theory: Intervals

Formula: R-m3-P5-m7-M9-P11-M13
Intervals: P1-m3-P5-m7-M9-P11-M13

The B♭ Minor 13th is built by stacking intervals from the root note. The formula R-m3-P5-m7-M9-P11-M13 describes the scale degrees used. The intervals P1-m3-P5-m7-M9-P11-M13 show the distance between each note in the chord.

B♭ Minor 13th — Frequently Asked Questions

What notes are in the Bb Minor 13th chord?
Practical voicing: Bb–Db–Ab–C–G.
How does Bbm13 differ from Bb13?
Bbm13 has minor third (Db). Bb13 has major third (D).
How is Bbm13 used in music?
Richest ii in Ab Major. Jazz, R&B, gospel.
How does Bbm13 differ from Bbm11?
Adds the thirteenth (G) for brightness.
What songs use Minor 13th chords?
Modal jazz, neo-soul, gospel.
Do I need to play all seven notes?
No — Bb–Db–Ab–C–G.

Practice Tips

  • Practical voicing: Bb–Db–Ab–C–G.
  • Bbm13 as ii in Ab — common in jazz and R&B.
  • The thirteenth (G) brightens the dark minor.
  • Practice Bbm13 → Eb13 → Abmaj13.
  • Rootless: Db–Ab–C–G.
  • Beautiful in gospel and R&B ballads.

Related Tools

Chord FinderLook up any chord — see the notes, hear it, and play along.Chord DrillTimed drills to build speed and recognition across all chord types.Practice RoomPlug in a MIDI keyboard and get real-time feedback on every chord and scale.Circle of FifthsVisualize key relationships, relative minors, and key signatures.MIDI MonitorLive MIDI message stream with note names, velocity, and a scrolling staff.