About the chord
C♯ minor 7th flat 9th / E (1st inversion)
C♯min7(♭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 C♯min7(♭9), C♯m7♭9/E, and C♯m7(♭9)/E.
Root note: C♯
Bass note: E
Chord tones: 5
Playable shapes: 141