C#e7#9 Minor 7th
The C#e7#9 chord is built from the notes C# – E – G# – B – D##.
Piano sound loads on first tap.
Also known as
C#m13add#9C#m7#9C#m7add#9C#min7#9
Chord tones, one by one
C#Root
Root
The fundamental note the chord is built on — C#.
EThird
Minor third
Three semitones — makes the chord minor (darker, sadder).
G#Fifth
Perfect fifth
Seven semitones — the most stable interval, reinforces the root.
BSeventh
Minor seventh (♭7)
Ten semitones — the dominant/minor seventh. Adds bluesy tension (7, m7).
D##Extension
Sharp ninth (♯9)
A ♯9 — the gritty 'Hendrix' tension over a dominant chord.
🎼 Related scales
🎹 Modal analysis
This chord implies the Dorian scale; its characteristic note is the major 6th (13).
🎸 Genres
Modal jazz · Funk · Soul · Rock