C♭ Minor Major 7th
Hear the C♭ Minor Major 7th chord played for you.
C♭m(maj7)
C♭ – E♭ – G – B
Formula:R-m3-P5-M7
Intervals:P1-m3-P5-M7
Scale Degrees:1-b3-5-7
Introduction
The C♭ Minor Major 7th chord is a four-note chord made up of C♭, E♭, G, and B. It is built from a root, minor third, perfect fifth, and major seventh.
The Cb Minor Major 7th piano chord (CbmMaj7) consists of the notes Cb, Eb, G, B. It is a minor triad with an added major 7th, giving it a dark and complex character with strong tension, often used in jazz and minor key progressions. Formula: R-m3-P5-M7 | Scale degrees: 1-b3-5-7.
Notes
C♭ Minor Major 7th Inversions
| Position | Notes |
|---|---|
| Root Position | Cb – Eb – G – B |
| 1st Inversion | G – Cb – B – Eb |
| 2nd Inversion | Cb – B – Eb – G |
| 3rd Inversion | Cb – Eb – G – B |
Key Signature
The key of Cb Minor Major 7th (enharmonically equivalent to B Minor Major 7th) has 2 sharps.
F♯C♯
Order of sharps
Sharps are added to a key signature in a fixed order. Each new sharp key adds the next sharp on the list.
F♯C♯G♯D♯A♯E♯B♯
Mnemonic: Father Charles Goes Down And Ends Battle
Chords in the Key of Cb Minor
These are the diatonic triads built on each degree of the Cb minor scale:
C
D
E
F
G
A
B
C
D
E
F
G
A
B
i — B Minor (minor)
Theory: Intervals
Formula: R-m3-P5-M7
Intervals: P1-m3-P5-M7
The C♭ Minor Major 7th is built by stacking intervals from the root note. The formula R-m3-P5-M7 describes the scale degrees used. The intervals P1-m3-P5-M7 show the distance between each note in the chord.
C♭ Minor Major 7th — Frequently Asked Questions
What notes are in the Cb Minor Major 7th chord?
CbmMaj7 is enharmonic equivalent of BmMaj7. Same notes.
How does CbmMaj7 differ from Cbm7?
CbmMaj7 has major seventh, Cbm7 has minor seventh.
How is CbmMaj7 used?
Musicians use BmMaj7 in practice.
What songs use Minor Major 7th?
Sound identical regardless of spelling.
Why does it sound tense?
Minor third and major seventh create dissonance.
Do I need both spellings?
Learn BmMaj7 and understand the enharmonic relationship.
Practice Tips
- CbmMaj7 and BmMaj7 are enharmonic.
- Translate to BmMaj7.
- Keyboard notes identical.
- Harmonic minor i chord.
- Understanding both builds fluency.
- The dramatic tension is the same.
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.