A major scale is a set of eight notes that follows a fixed pattern of tones (T) and semitones (S):
T T S T T T S
X:1
L:1/4
K:C clef=treble
C D E F | G A B c |
Key signatures
Rather than write the same sharps or flats again and again, we put them once at the start — the key signature. The Grade 1 major scales are:
- C major — no sharps or flats.
- G major — one sharp: F♯.
- D major — two sharps: F♯ and C♯.
- F major — one flat: B♭.
X:1
L:1/4
K:G clef=treble
G A B c | d e f g |
Above is G major — the single sharp in the key signature makes every F an F♯.
Remember
- Major pattern: T T S T T T S.
- C major: none · G major: F♯ · D major: F♯ C♯ · F major: B♭.
- A key signature applies to every bar in the piece.