B♭aug(add9) 8-string bass chord

How to play B♭aug(add9) on 8-string bass

The most common way, the first shape above: your little finger on the E string at the 6th fret, your middle finger on the A string at the 5th fret, your index finger on the D string at the 4th fret and your ring finger on the G string at the 5th fret. Don’t play the F♯, B, C and F strings.

From the F♯ string x x 6 5 4 5 x x (x: not played, 0: open)

What notes are in B♭aug(add9)?

B♭aug(add9), B♭ augmented added ninth, is B♭, D, F♯ and C: the root (B♭), the major third (D), the augmented fifth (F♯) and the ninth (C). Its formula is 1 3 ♯5 9.