Theory: Codebreaker 5 Revise


Revise for your grade 5 theory exam the 21st century way! See below for more information. Access to this online music pack is for 12 months with three chances to unlock each musical code.


This pack is available for students to buy from this page – or music teachers can set up an account, add their own students to a pack like this one, and view a snapshot of progress and activity.

Do you find it hard to get excited about music theory in a text book?

  • Codebreaker 5 is the 21st century way to test your grade 5 theory knowledge!
  • This online music pack is full of quizzes playable on a computer, smartphone or tablet
  • It covers a wide variety of topics, including intervals, key signatures, time signatures, chords, cadences are more.

Crack the musical codes and learn your theory terms

  • Unlock musical codes and move through the levels.
  • You are only given a clue to the code if you pass the quiz and the clue is a musical term definition (e.g. ‘at a moderate walking pace’) plus three possible answers (e.g. ‘lento’, ‘allegro’, ‘andante’).  A great way to help you learn your terms!
  • Access to this online music pack is for 12 months with three chances to unlock each musical code.

This pack has been created by music teacher Susan Leigh. Read some lovely comments about Susan’s music resources and her teaching here

Eight levels

There are eight levels with quizzes in each:

  • Level 1 Clefs: Naming notes which play in the tenor clef, instruments which play in all four clefs (treble, bass, tenor and alto); using middle C as a guide note, and notes at the same pitch
  • Level 2 Keys and Accidentals: Work out the keys from the key signatures; positions of sharps and flats in all four clefs (treble, bass, alto and tenor), working out the key of the music, and enharmonic equivalents
  • Level 3 Scales: Major, harmonic minor, melodic minor scales and chromatic scales
  • Level 4 Time: Groups of notes including triplets and duplets etc.; dotted and double dotted notes; time signatures; groupings of notes and rests in simple, compound and irregular time signatures
  • Level 5 Intervals and Transposition: Intervals; transposing up or down a major 2nd, minor 3rd or perfect 5th
  • Level 6 Chords and Cadences: Identifying chords I, II, IV and V in root position, first inversion and second inversion; finding the Ic-V progression; choosing chords to form cadences
  • Level 7 Musical Terms: A selection of quizzes and puzzles on Italian, German and French musical terms. Every quiz in all levels of Codebreaker 5 also has a musical code to unlock which is a musical term.
  • Level 8 General Questions: Questions about instruments of the orchestra, voices and keyboard instruments; musical signs; ornaments; questions on extracts of music

Great for busy music teachers …

  • With the free Teacher Dashboard, teachers can add their own students to Codebreaker 5 and instantly see if a student has understood a topic. Please sign up for a free teacher account to set this up.
  • Students can only unlock the codes if they score 75% or more in a quiz
  • You can view which quizzes your student has taken in the activity stream in the dashboard.


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