KEY SIGNATURE
A key signature is the collection of flats and sharps sign at the beginning of each staff. There are fifteen major key signatures and are grouped into three namely:
Natural key – 1 key
Sharp keys – 7 keys
Flat keys – 7 keys
Natural key: the natural key has no sharp or flat sign. The staff has no accidental at its entrance. The key is C major as shown below
Sharp keys: there are seven sharp keys. They are
Name of key
Number of sharps
G major
1 – F
D major
2 – F C
A major
3 – F C G
E major
4- F C G D
B major
5- F C G D A
F# major
6 – F C G D A E
C# major
7- F C G D A E
Gmajor Dmajor Amajor Emajor Bmajor F# C#
Flat keys: there are also flat keys. They are:
Name of key
Number of flats
F major
1- B
Bb major
2- B E
Eb major
3- B E A
Ab major
4 -B E A D
Db major
5- B E A D G
Gb major
6- B E A D G C
Cb major
7- B E A D G C F
F B E A D G C
ASSIGNMENT
What is key signature?
Which key is natural?
G major has how many sharp?
How many keys are in sharp series