Fm7♭5♭9 8-string bass chord

How to play Fm7♭5♭9 on 8-string bass

The most common way, the first shape above: lay your index finger flat across the six strings from the B to the C at the 6th fret, your ring finger on the E string at the 7th fret and your little finger on the G string at the 8th fret. Don’t play the F♯ and F strings.

From the F♯ string x 6 7 6 6 8 6 x (x: not played, 0: open)

What notes are in Fm7♭5♭9?

Fm7♭5♭9, F half-diminished seventh flat nine, is F, A♭, C♭, E♭ and G♭: the root (F), the minor third (A♭), the diminished fifth (C♭), the minor seventh (E♭) and the flat ninth (G♭). Its formula is 1 ♭3 ♭5 ♭7 ♭9.