D♭aug 7-string bass chord

How to play D♭aug on 7-string bass

The most common way, the first shape above: your middle finger on the B string at the 2nd fret, your little finger on the D string at the 3rd fret, your ring finger on the G string at the 2nd fret and your index finger on the C string at the 1st fret. Let the A and F strings ring open. Don’t play the E string.

From the B string 2 x 0 3 2 1 0 (x: not played, 0: open)

What notes are in D♭aug?

D♭aug, D♭ augmented, is D♭, F and A: the root (D♭), the major third (F) and the augmented fifth (A). Its formula is 1 3 ♯5.

Why do D♭aug and two other augmented chords have the same notes?

An augmented chord is two major thirds stacked, D♭, F and A, and a third more brings you back to D♭. So D♭aug has the same notes as the augmented chords on F and A.