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C#7#9 Guitar Chord

A raw, urgent sound containing both a major third and a minor third (augmented ninth = minor third). Made famous by Jimi Hendrix in "Purple Haze". A staple of blues-rock and funk.

Guitar

Strings X–4–3–4–2–0

How to play the C#7#9 chord on guitar

Read the string pattern X–4–3–4–2–0 from the low E string to the high E string. Numbers in the pattern are frets; numbers in the colored dots are left-hand fingers. X means a muted string and 0 means an open string.

6th string (low E) Muted
5th string (A) Fret 4 · ring finger
4th string (D) Fret 3 · middle finger
3rd string (G) Fret 4 · pinky
2nd string (B) Fret 2 · index finger
1st string (high E) Open

Other names for the C#7#9 chord

Other names: C# 7th sharp 9, C# Hendrix chord

Music theory name: seventh sharp nine chord

Common name: C# Hendrix chord

Notes and intervals in the C#7#9 chord

Note Interval
C# Root
E# Major 3rd
G# Perfect 5th
B Minor 7th
E Augmented 9th

All variations

Open
X–4–3–4–2–0
Fret 3
X–4–3–4–5–X
Fret 8
X–8–9–9–9–9
Fret 9
9–11–9–10–9–12

More chords with C# as the root

The same chord type in other keys