Tip: click the root notes to see fingering suggestions
A♭ Augmented 7th (♭9) :: G♯ C E F♯ A

A
E
C
G
♭9
♯5
3
G♯
♭7
♭9
3
G♯
♯5
♭9
3
♭7
♯5
3
G♯
♭7
♭9
♯5
G♯
♭7
⬤ ⬤
♭9
♯5
3
⬤ ⬤
E F♯ A
A Dominant 13th :: A C♯ E G B D F♯

A
E
C
G
A
5
♭7
3
9
13
11
A
♭7
3
5
9
11
A
13
3
5
9
♭7
11
13
3
A
5
♭7
11
9
13
⬤ ⬤
A
5
♭7
⬤ ⬤