Reading time: 6 minutes |
Sections 3.1 and 3.2 of the ABRSM Grade 5 Music Theory exam test your knowledge of key signatures.
You’ll be given a question like this: “Tick one box to show the correctly written key signature of B major.”
To answer these questions, you need to know two things:
- Which accidentals are in the key signature
- How they are laid out on the staff
Here’s everything you need to know.
The Order of Sharps and Flats
The Order of Sharps
F – C – G – D – A – E – B
A common mnemonic to remember this:
Father Charles Goes Down And Ends Battle
The Order of Flats
B – E – A – D – G – C – F
The same mnemonic in reverse:
Battle Ends And Down Goes Charles’s Father
Which Sharps/Flats for Each Key?
| Major Key | Sharps/Flats | Accidentals |
|---|---|---|
| C major | None | – |
| G major | 1 sharp | F♯ |
| D major | 2 sharps | F♯, C♯ |
| A major | 3 sharps | F♯, C♯, G♯ |
| E major | 4 sharps | F♯, C♯, G♯, D♯ |
| B major | 5 sharps | F♯, C♯, G♯, D♯, A♯ |
| F♯ major | 6 sharps | F♯, C♯, G♯, D♯, A♯, E♯ |
| C♯ major | 7 sharps | F♯, C♯, G♯, D♯, A♯, E♯, B♯ |
| Major Key | Sharps/Flats | Accidentals |
|---|---|---|
| F major | 1 flat | B♭ |
| B♭ major | 2 flats | B♭, E♭ |
| E♭ major | 3 flats | B♭, E♭, A♭ |
| A♭ major | 4 flats | B♭, E♭, A♭, D♭ |
| D♭ major | 5 flats | B♭, E♭, A♭, D♭, G♭ |
| G♭ major | 6 flats | B♭, E♭, A♭, D♭, G♭, C♭ |
| C♭ major | 7 flats | B♭, E♭, A♭, D♭, G♭, C♭, F♭ |
Visual Patterns for Key Signatures
The accidentals in a key signature follow a specific visual pattern. This is different for each clef.
Sharp Keys
In the treble, alto, and bass clefs, sharps are arranged in a wave pattern going down (like a W shape).
In the tenor clef, sharps are arranged in a wave pattern going up.
Important: The starting F♯ is in the upper half of the staff for treble, alto, and bass clefs, but in the lower half for tenor clef.
Flat Keys
Flats are more consistent across all clefs. In all four clefs, flats are arranged in a wave pattern going down in a symmetrical way.
Worked Example 1: Sharp Keys (B Major)
The question: Tick the correctly written key signature for B major.
B major has 5 sharps: F♯, C♯, G♯, D♯, A♯
Check Each Option:
| Option | Clef | Correct Pattern? | Verdict |
|---|---|---|---|
| 1 | Alto | Wrong pattern | ❌ |
| 2 | Treble | Wrong accidental (D♯ instead of C♯) | ❌ |
| 3 | Bass | Wrong accidental (B♯ instead of A♯) | ❌ |
| 4 | Tenor | Matches correct pattern | ✅ |
Answer: The tenor clef option is correct.
Worked Example 2: Flat Keys
The question: Tick the correctly written key signature for a key with 6 flats.
6 flats = G♭ major: B♭, E♭, A♭, D♭, G♭, C♭
Check Each Option:
| Option | Clef | Correct Pattern? | Verdict |
|---|---|---|---|
| 1 | Treble | Not symmetrical | ❌ |
| 2 | Bass | Matches correct pattern | ✅ |
| 3 | Tenor | Starts wrong, too low | ❌ |
| 4 | Alto | Starts on wrong accidental (E♭ instead of B♭) | ❌ |
Answer: The bass clef option is correct.
Quick Reference Charts
Sharp Keys – Visual Pattern
| Clef | Pattern |
|---|---|
| Treble | Wave going down (W shape) |
| Alto | Wave going down (W shape) |
| Bass | Wave going down (W shape) |
| Tenor | Wave going up |
Flat Keys – Visual Pattern
| Clef | Pattern |
|---|---|
| Treble | Wave going down (symmetrical) |
| Alto | Wave going down (symmetrical) |
| Bass | Wave going down (symmetrical) |
| Tenor | Wave going down (symmetrical) |
Common Pitfalls to Avoid
- Using the wrong order of accidentals. Always use the correct sequence (F–C–G–D–A–E–B for sharps, B–E–A–D–G–C–F for flats).
- Forgetting the visual pattern. Accidentals aren’t placed randomly – they follow specific wave patterns.
- Confusing the tenor clef pattern. Tenor clef sharps go up, not down.
- Miscounting the number of accidentals. 5 sharps = B major, 6 flats = G♭ major, etc.
Summary of Steps
- Identify the key (e.g., B major)
- Recall the correct accidentals (e.g., 5 sharps: F♯, C♯, G♯, D♯, A♯)
- Check the visual pattern for the given clef
- Eliminate wrong options and select the correct one
Practice Makes Perfect
Understanding the theory is one thing, but exam success comes from repeated, focused practice. That’s why my interactive practice site (app.owenmusictheory.com) can make all the difference in your preparation.
Here’s how the two practice modes work:
Drill Mode: Master One Section at a Time
Drill Mode is designed for targeted practice. You get access to all the questions organised section by section, just like the real exam. This means you can:
- Focus specifically on key signatures until it feels second nature
- Skip the sections you’re already confident in and spend your time where it matters most
- Practise the same question type repeatedly with virtually unlimited questions – you’ll never run out of fresh material
With instant feedback on every answer, you’ll learn from your mistakes immediately and reinforce correct answers right away.
Exam Mode: Simulate the Real Thing
When you’re ready to put it all together, Exam Mode gives you the full experience:
- Full-length papers in the exact format of the ABRSM exam
- Randomised questions each time you take a test – no two papers are the same
- A 2-hour time limit to help you build speed and stamina
- A final score and detailed feedback at the end, so you know exactly where you stand
This mode is invaluable for reducing exam-day anxiety. The more you practise under real conditions, the more confident you’ll feel when it counts.
Get Started
- Head to app.owenmusictheory.com
- Sign up free — no card required
- Try the free Pitch and Terms drills, or sit the free sample exam paper
- If it’s helping, upgrade for full access to every section and unlimited randomised papers
Grade 5 Theory is a one-time hurdle standing between you and your next practical grade. Practising smart — with realistic questions, instant feedback, and proper timed conditions — is the difference between walking in anxious and walking in ready.
Good luck!
