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Grade 3 Music Theory

Compound time, minor scales, intervals and more keys.

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15 lessons, the first one free

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Practise

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    Mixed practice

    10 questions across the course.

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    The course, unit by unit

    Part 2: Pitch and transposition

    1 unit, 2 lessons

    1. Unit 2: Pitch and transposition

      25 minPlus

    Part 4: Intervals

    1 unit, 1 lesson

    1. Unit 4: Intervals

      14 minPlus

    Part 5: Tonic triads

    1 unit, 1 lesson

    1. Unit 5: Tonic triads

      12 minPlus

    Part 6: Terms and signs

    1 unit, 2 lessons

    1. Unit 6: Terms and signs

      27 minPlus

    Part 7: Music in context

    2 units, 2 lessons

    1. Unit 7: Music in context

      12 minPlus

    2. Unit 8: Music in context: longer extracts

      15 minPlus

    Part 8: Exam preparation

    1 unit, 1 lesson

    1. Unit 9: Exam preparation

      10 minPlus

    Topic tests

    Every unit ends with a topic test, marked when you hand it in, with the reason for every answer.

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    Which syllabus does it follow?

    It follows the ABRSM Music Theory syllabus for Grade 3 (the syllabus from 2020, checked against ABRSM on 9 October 2026). Brainlag is independent and not affiliated with ABRSM.

    What is free?

    1 of the 15 lessons is free. Brainlag Plus (£14.99 a month) opens the rest of the lessons, the topic tests 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 3 hr 15 min of lessons in 9 units. Lessons take 10 to 16 minutes each.

    Follows 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.