About the chord
C minor 7th flat 9th / E♭ (1st inversion)
Cmin7(♭9)/E♭ is the C minor 7th flat 9th / E♭ (1st inversion) guitar chord with E♭ in the bass. It uses the notes C, E♭, G, B♭, and D♭ and the interval formula 1-♭3-5-♭7-♭9.
The C minor 7th flat 9th minor 7th flat 9th chord extends the minor 7th with a flat ninth D♭, creating a dark, eerie tension. The combination of the minor third E♭, minor seventh B♭, and flat ninth D♭ produces a dissonant, haunting sound perfect for jazz, film scoring, and dramatic resolutions. With E♭ in the bass, this voicing functions as the 1st inversion of C minor 7th flat 9th.
Also written as Cmin7(♭9), Cm7♭9/E♭, and Cm7(♭9)/E♭.
Root note: C
Bass note: E♭
Chord tones: 5
Playable shapes: 6