Tip: click the root notes to see fingering suggestions
F Dominant 7th (♭5) :: F A B E♭

A
E
C
G
3
F
♭5
3
♭7
♭5
3
F
♭7
♭5
F
♭7
3
F
♭7
♭5
⬤ ⬤
3
⬤ ⬤
A B E♭
B Augmented 7th (♭9) :: B D♯ G A C

A
E
C
G
♭7
♭9
♯5
B
♭7
♭9
♯5
3
B
♭7
♭9
3
B
♯5
♭9
3
♭7
♯5
3
B
⬤ ⬤
♭7
♭9
♯5
⬤ ⬤