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      Composing a chord sequence

      I can compose an effective 8-bar chord sequence using the typical conventions of Western classical music.

      Copyrighted materials: to view and download resources from this lesson, you’ll need to be in the UK and

      Lesson 3 of 5
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      • Year 10
      • AQA

      Composing a chord sequence

      I can compose an effective 8-bar chord sequence using the typical conventions of Western classical music.

      Copyrighted materials: to view and download resources from this lesson, you’ll need to be in the UK and

      Lesson details

      Key learning points

      1. Chord sequences are patterns of chords that form the harmony in a composition.
      2. Starting on chord I (tonic) and using mostly primary chords (chords I, IV and V) helps to anchor the music in a key.
      3. Using some secondary chords (ii, iii and vi) adds further interest, but these should be used sparingly.
      4. Ending with a perfect cadence (chord V to I) helps the music feel finished.
      5. Using an imperfect cadence (any chord to V) in the middle of the sequence (bar 4) helps the music sound unfinished.

      Keywords

      • Primary chord - the most useful chords in a key - chord I (1), IV (4) and V (5)

      • Secondary chord - chords ii (2), iii (3) and vi (6) in a key

      • Tonic - chord I (1). In C major, the tonic chord is a C major chord

      • Perfect cadence - where a chord sequence ends with chord V then I, creating a finished feeling

      • Imperfect cadence - where a chord sequence or section of one ends on chord V, creating an unfinished feeling

      Common misconception

      Secondary chords shouldn't be used.

      Secondary chords are important for interesting harmony and using them is a good idea. As you become a more experienced composer, you'll learn how to effectively use them. For now, a good rule of thumb is to use them sparingly.

      More experienced composers can be encouraged to explore use of chord inversions in their chord sequences. When doing this, they should focus on minimising physical movement between chords on the piano keyboard - this helps to use inversions effectively and melodically.
      Teacher tip

      Equipment

      A DAW, notation software, a keyboard or other suitable instrument that can be used as a composition tool.

      Licence

      This content is © Oak National Academy Limited (2026), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).

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      Lesson appears in

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