C♯m7♭9 7-string bass chord

How to play C♯m7♭9 on 7-string bass

The most common way, the first shape above: your middle finger on the B string at the 2nd fret, your ring finger on the A string at the 2nd fret, your ring finger on the D string at the 2nd fret, your index finger on the G string at the 1st fret and your little finger on the C string at the 2nd fret. Don’t play the E and F strings.

From the B string 2 x 2 2 1 2 x (x: not played, 0: open)

What notes are in C♯m7♭9?

C♯m7♭9, C♯ minor seventh flat nine, is C♯, E, G♯, B and D: the root (C♯), the minor third (E), the perfect fifth (G♯), the minor seventh (B) and the flat ninth (D). Its formula is 1 ♭3 5 ♭7 ♭9.