The C mi13♭5 chord is a seven-note chord made up of C, E♭, G♭, B♭, D, F, and A. It is built from a root, minor third, diminished fifth, minor seventh, major ninth, perfect eleventh, and major thirteenth.
Construction
C mi13♭5 = Root + Minor 3rd + Diminished 5th + Minor 7th + Major 2nd + Perfect 4th + Major 6th = C · E♭ · G♭ · B♭ · D · F · A
| Note | Interval | Degree |
|---|---|---|
| C | Root | 1 |
| E♭ | Minor 3rd | ♭3 |
| G♭ | Diminished 5th | ♭5 |
| B♭ | Minor 7th | ♭7 |
| D | Major 2nd | 9 |
| F | Perfect 4th | 11 |
| A | Major 6th | 13 |
Key Signature
A chord has no key signature of its own, but the C mi13♭5 is the tonic (I) chord of C Major, whose key signature has no sharps or flats.
Chords in the Key of C Major
These are the triads built on each degree of the C major scale:
C mi13♭5 — Frequently Asked Questions
What is the C mi13♭5 chord on piano?
The C mi13♭5 chord contains the notes C – E♭ – G♭ – B♭ – D – F – A. On piano, play these notes together to sound the chord.
What notes are in the C mi13♭5 chord?
The C mi13♭5 chord (Cmi13♭5) contains 7 notes: C, Eb, Gb, Bb, D, F, A. Formula: R-m3-d5-m7-M9-P11-M13.
How is Cmi13♭5 used in music?
Cmi13♭5 is used in jazz, fusion, and contemporary music to add harmonic color. It appears as a dominant or tonic chord depending on context.
What is the scale degree formula for Cmi13♭5?
Cmi13♭5 uses scale degrees 1-b3-b5-b7-9-11-13, giving it its distinctive sound.