Theory: Codebreaker 5 Revise


Revise for your grade 5 theory exam the 21st century way!

  • Online quizzes on grade 5 topics
  • Updated for the new ABRSM online exams from 2020
  • Unlock the codes to move up the levels
  • Play on computer, smartphone or tablet

See below for more information



What is Codebreaker?

  • Codebreaker 5 is full of online quizzes to help you prepare for your ABRSM grade 5 theory exam
  • Organised by topic, every quiz is locked with a musical code
  • Unlock all the codes to move up the levels and complete the challenge.

A 21st century approach to music theory

  • Playable on a computer, smartphone or tablet
  • The progress bar easily lets you see how much of Codebreaker you have completed
  • Correct or incorrect feedback after each question
  • If you get a question wrong, Codebreaker helps you improve for next time by revealing the answer instantly
  • See more about the topics below but it includes intervals, time signatures, chords, cadences and more
  • Play the quizzes as many times as you like during the time you are subscribed making it ideal for revision.
  • 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

Crack the musical codes and learn your theory terms

  • If you pass a quiz, Codebreaker 5 will give you the chance to unlock a musical code
  • Fail a quiz though, and you will need to start it again to see the clue to the code!
  • Unlock all codes in a topic to move up to the next level
  • The clue to the code 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!

Eight levels organised by theory topic

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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