Notes in E♭7♯9
The E♭7♯9 chord contains 5 notes: E♭, G, B♭, C♯, F♯
Intervals
| Interval | Semitones | Note | Function |
|---|---|---|---|
| R | 0 | E♭ | Root |
| 3 | 4 | G | Major 3rd |
| 5 | 7 | B♭ | Perfect 5th |
| ♭7 | 10 | C♯ | Minor 7th |
| ♯9 | 3 | F♯ | Augmented 9th |
About E♭ 7th Sharp 9 Chords
The 7♯9 chord — the 'Hendrix chord' — combines a dominant 7th with a sharp 9th (enharmonically, a minor 3rd). This creates a crunchy clash between the major 3rd and minor 3rd. Jimi Hendrix's 'Purple Haze' made this voicing iconic, but it appears throughout blues, funk, and jazz.
Compatible Scales & Modes
These scales contain all the notes of E♭7♯9 and can be used for soloing, improvising, and writing melodies over this chord.
Playing Eb seventh sharp nine on Guitar
The Eb seventh sharp nine chord, spelled E♭, G, B♭, C♯, F♯, occupies a specific harmonic role that depends on the musical context. In the key of Eb major, this chord can function as a primary harmony or as a passing color depending on where it appears in the progression. Understanding which scale degrees produce Eb-rooted chords helps you predict chord progressions and improvise melodies that complement the harmony.
On guitar, Eb seventh sharp nine voicings benefit from voicings favored by guitarists who tune down a half step. The physical shape of this chord on the fretboard determines its tonal character — the same notes arranged in different voicings produce noticeably different sounds due to string gauge, fret position, and overtone content. Experiment with playing Eb seventh sharp nine in multiple positions to find the voicing that best fits the register and texture of the music you are working on.
The Eb7#9 chord contains both a major third and a sharp nine (enharmonic minor third), creating the famous bluesy clash. This dissonance gives Eb7#9 its gritty, aggressive character that defined psychedelic rock and continues to drive blues and funk guitar.
When practicing Eb seventh sharp nine, use the compatible scales listed above to improvise melodies and riffs. Start by playing the chord, then explore the scale tones one at a time to hear how each note sounds against the harmony. This ear training exercise connects your theoretical knowledge of Eb-rooted chords to practical musicianship skills that improve your playing across all genres and styles.