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Music theory definition

Clef

The symbol at the start of the staff that fixes which line is which note.

Learn it in context

This term is introduced in Unit 3: Reading music. Work through the explanations and exercises to connect the definition with music.

Natural (♮)
Cancels a sharp or flat, returning a note to its plain letter name.
Accidental
A sharp, flat, or natural written before a note. It lasts until the end of the bar.
Staff
Five horizontal lines on which notes are written. Higher on the staff means higher in pitch.
Treble clef
The G clef. Its curl wraps around the line for G above middle C. Used for higher notes.
Bass clef
The F clef. Its two dots surround the line for F below middle C. Used for lower notes.
Grand staff
A treble and a bass staff joined by a brace, as in piano music.
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