A9♭5 7-string bass chord

How to play A9♭5 on 7-string bass

The most common way, the first shape above: lay your index finger flat across the five strings from the E to the C at the 11th fret, your undefined finger on the B string at the 10th fret, your ring finger on the A string at the 12th fret and your little finger on the G string at the 12th fret. Don’t play the F string.

From the B string 10 11 12 11 12 11 x (x: not played, 0: open)

What notes are in A9♭5?

A9♭5, A ninth flat five, is A, C♯, E♭, G and B: the root (A), the major third (C♯), the diminished fifth (E♭), the minor seventh (G) and the ninth (B). Its formula is 1 3 ♭5 ♭7 9.