𝄢 Clefs

Clefs tell you which pitches the lines and spaces on the staff represent. You need to recognise and read the treble and bass clef for WJEC GCSE.

The Treble Clef

The treble clef (G clef) marks the second line as G4. It is used for higher-pitched instruments — violin, flute, trumpet, guitar, and the right hand of the piano.

Lines (bottom → top)Spaces (bottom → top)
E – G – B – D – FF – A – C – E
Every Good Boy Deserves FudgeFACE
Remember: Middle C (C4) sits on the first ledger line below the treble staff.

The Bass Clef

The bass clef (F clef) marks the fourth line as F3. It is used for lower-pitched instruments — cello, double bass, bassoon, trombone, and the left hand of the piano.

Lines (bottom → top)Spaces (bottom → top)
G – B – D – F – AA – C – E – G
Good Boys Deserve Fudge AlwaysAll Cows Eat Grass
Remember: Middle C (C4) sits on the first ledger line above the bass staff — directly below where it sits in the treble clef.

The Grand Staff

Piano music uses a grand staff — treble and bass clefs joined together by a brace. Middle C sits on a ledger line between the two staves, shared by both. The right hand reads treble; the left hand reads bass.

Ledger Lines

Ledger lines are short extra lines added above or below the staff to extend its range. Notes above or below the five main lines sit on or between ledger lines. Middle C is the most common ledger line note to know.