C♯9 7-string guitar chord

How to play C♯9 on 7-string guitar

The most common way, the first shape above: your middle finger on the A string at the 4th fret, your index finger on the D string at the 3rd fret, your ring finger on the G string at the 4th fret, your ring finger on the high B string at the 4th fret and your ring finger on the high E string at the 4th fret. Don’t play the low B and low E strings.

From the low B string x x 4 3 4 4 4 (x: not played, 0: open)

What notes are in C♯9?

C♯9, C♯ dominant ninth, is C♯, E♯, G♯, B and D♯: the root (C♯), the major third (E♯), the perfect fifth (G♯), the minor seventh (B) and the ninth (D♯). Its formula is 1 3 5 ♭7 9.

Can I play C♯7 instead of C♯9?

Yes. C♯9 is C♯7 with D♯ added; on guitar the root or fifth is often left out to make room for it.

What is the difference between C♯9 and D♭add9?

C♯9 has the minor seventh, B, under the ninth; D♭add9 has the ninth with no seventh.