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.
Construction
C♭ Minor Major 7th = Root + Minor 3rd + Perfect 5th + Major 7th = C♭ · E♭♭ · G♭ · B♭
| Note | Interval | Degree |
|---|---|---|
| C♭ | Root | 1 |
| E♭♭ | Minor 3rd | ♭3 |
| G♭ | Perfect 5th | 5 |
| B♭ | Major 7th | 7 |
C♭ Minor Major 7th Inversions
| Position | Notes |
|---|---|
| Root Position | C♭ – E♭♭ – G♭ – B♭ |
| 1st Inversion | E♭♭ – G♭ – B♭ – C♭ |
| 2nd Inversion | G♭ – B♭ – C♭ – E♭♭ |
| 3rd Inversion | B♭ – C♭ – E♭♭ – G♭ |
Key Signature
A chord has no key signature of its own, but the C♭ Minor Major 7th is the tonic (i) chord of Cb Minor, which shares the signature of its relative major, D Major — 2 sharps (F♯, C♯).
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 C♭ Minor
These are the triads built on each degree of the C♭ minor scale:
C♭ Minor Major 7th — Frequently Asked Questions
What is the C♭ Minor Major 7th chord on piano?
The C♭ Minor Major 7th chord contains the notes C♭ – E♭♭ – G♭ – B♭. On piano, play these notes together to sound the chord.
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.