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Grade 1 - Sharps, Flats and Naturals
Can you tell a flat from a sharp from a natural?

Grade 1 - Sharps, Flats and Naturals

Sharps, flats, and naturals change a note’s pitch. Learn how key signatures and accidentals work in Grade 1 so you read music accurately and confidently.

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Fascinating Fact:

A key signature’s sharps or flats apply to every matching note until a new key signature appears.

In Specialist Music Theory Grade 1, this page explains how sharps, flats, and naturals work on the stave. You’ll see the difference between a key signature (rules for the whole piece) and accidentals (one-bar changes).

  • Sharp (♯): Raises a note by one semitone (e.g., F becomes F♯).
  • Flat (♭): Lowers a note by one semitone (e.g., B becomes B♭).
  • Natural (♮): Cancels a sharp or flat for that note within the bar.
How long does an accidental last in Grade 1 theory?

An accidental (♯ ♭ or ♮) lasts to the end of the bar for notes on the same line or space. It resets at the next barline unless marked again.

Does a natural sign cancel the key signature?

A natural (♮) cancels a sharp or flat for that specific note in the current bar only. The original key signature resumes in the next bar.

What’s the difference between a key signature and accidentals?

The key signature sets sharps or flats for the whole piece. Accidentals are one-bar changes that temporarily raise, lower, or cancel a note.

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Author:  Kathleen Shuster (experienced music teacher and music theory writer)

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