Skip to content
Brainlag

Music Theory

Grade 4 Music Theory

The alto clef, every time signature and chords I, IV, V.

Unit 1 is free. The full course comes with Brainlag Music.

Start lesson 1 freeSee what’s included
  • Music Theory Grades 3 to 8
  • Ear training
  • Topic tests and mock papers

9 units, 44 lessons

Part way through? Find my level

Practise

Revise next

    How this works

    Picked from your answers on this device and your account: topics you are still learning, and secure ones you have not practised for a while. The bars show how sure you are on each one. It is not a grade.

    Mistakes

    All clear

    Lesson cards

    All decks

    Due today:

    Mixed practice

    10 questions across the course.

    Start mixed practice

    What you’ll be able to do

    • Group notes and rests to show the beats
    • Name notes in the treble, alto and bass clefs
    • Recognise a correctly written chromatic scale
    • Write a note a given interval above another
    • Name and write chords I, IV and V
    • Name ornament signs and other signs

    Units and lessons

    9 units, 44 lessons

    1. Unit 9: Exam preparation

      6 min with practicePlus or Brainlag Music

    A look inside

    Every time signature

    Simple time, every beat

    Learn these by heart

    BeatDupleTripleQuadruple
    minim
    crotchet
    quaver (new)

    In simple time each beat is a plain note that divides into two. The top number counts the beats; the bottom number says which note is the beat. New at Grade 4: , four quaver beats.

    Quick check

    How would you describe ?

    Open this lesson

    Alongside the lessons

    Music terms and the metronome

    About this grade

    The alto clef, every time signature, chords I, IV and V, ornaments and the orchestra: Grade 4 theory, taught and practised.

    Covers the ABRSM Music Theory syllabus. ABRSM is a trade mark of its owner; Brainlag is independent and is not affiliated with or endorsed by ABRSM. Every example and question is original. Results are Brainlag estimates, not exam results.

    Questions
    Which syllabus does it follow?

    It follows the ABRSM Music Theory syllabus for Grade 4 (the syllabus from 2020, checked against ABRSM on 9 October 2026). Brainlag is independent and not affiliated with ABRSM.

    What is free?

    8 of the 44 lessons are free, and each unit's topic test. Brainlag Plus opens the rest of the lessons, new questions on every topic test and the mock paper.

    Do I need an account?

    No. Progress saves in this browser; sign in to keep it on every device.

    How long does it take?

    About 2 hr 45 min of lessons in 9 units. Lessons take 3 to 5 minutes each.