MUSIC270 Chapter 2: Key Signature and Church Modes
Key
Signature
Major key
Minor key
Ionian Mode
Dorian Mode
C
A
Ionian
Dorian
G
E
G Ionian
E Dorian
D
B
D Ionian
B Dorian
A
F♯
A Ionian
F♯ Dorian
E
C♯
E Ionian
C♯ Dorian
B
G♯
B Ionian
G♯ Dorian
F♯
D♯
F♯ Ionian
D♯ Dorian
C♯
A♯
C♯ Ionian
A♯ Dorian
F
D
F Ionian
D Dorian
B♭
G
B♭ Ionian
G Dorian