key signatures

C

no sharps/flats, major

G

1 sharp, major

D

2 sharps, major

A

3 sharps, major

E

4 sharps, major

B

5 sharps, major

F#

6 sharps, major

C#

7 sharps, major

F

1 flat, major

Bb

2 flats, major

Eb

3 flats, major

Ab

4 flats, major

Db

5 flats, major

Gb

6 flats, major

B/Cb

7 flats, major

am

no sharps/flats, minor

em

1 sharp, minor

bm

2 sharps, minor

f#m

3 sharps, minor

c#m

4 sharps, minor

g#m

5 sharps, minor

d#m

6 sharps, minor

a#m

7 sharps, minor

dm

1 flat, minor

gm

2 flats, minor

cm

3 flats, minor

fm

4 flats, minor

bbm

5 flats, minor

ebm

6 flats, minor

abm

7 flats, minor