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      Using harmonic devices in film music

      Lesson details

      Learning outcome

      I can develop a film theme using pedals and dissonance.

      Key learning points

      1. Harmonic devices, such as pedals and dissonance are very useful tools for film composers.
      2. Pedals (usually on the tonic note) create tension by creating clashes between the bass notes and chords.
      3. Dissonant chords, which often feature adjacent notes or chromatic notes, also create tension and excitement.
      4. We can reharmonise a consonant melody with dissonant harmony to develop it and add tension.

      Keywords

      • Pedal - a bass note that stays the same while the chords change above it

      • Tonic - the ‘home’ note of a key, which a key is named after (e.g. the note C in C major)

      • Dissonance - when notes clash with each other

      • Consonance - when notes create pleasant harmony with each other

      Common misconception

      Black notes are the same thing as chromatic notes.

      This is not always true. Chromatic notes are any notes that are from outside of the key. If you are in C major, which only uses white notes, the black notes will be chromatic. However, in other keys the black notes might not be chromatic.

      Teacher tip

      When forming chords encourage pupils to focus on the feeling of each chord, trying to create as much tension as possible through clashes. Learning can be extended by encouraging pupils to explore how moving the leitmotif and chords into different ranges can add to or reduce tension.

      Equipment

      DAW, notation software, keyboard or other suitable instrument 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).

      Lesson video

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      Prior knowledge starter quiz

      6 Questions

      Q1.
      Which of these is a type of tonality?

      Correct answer: diatonic
      chromatic
      pedal
      dissonant

      Q2.
      Match the term to its correct definition.

      Correct Answer:diatonic,music that stays within a key

      music that stays within a key

      Correct Answer:chromatic,uses notes outside the key

      uses notes outside the key

      Correct Answer:atonal,has no clear key or tonal centre

      has no clear key or tonal centre

      Correct Answer:modal,uses older scales like dorian or mixolydian

      uses older scales like dorian or mixolydian

      Q3.
      Which of these best describes how chromatic music differs from diatonic music?

      chromatic only uses black keys on a keyboard
      chromatic stays strictly in the key
      chromatic always sounds happy
      Correct answer: chromatic uses notes outside the key

      Q4.
      Which type of tonality would best suit a joyful scene?

      minor
      Correct answer: major
      atonal
      chromatic

      Q5.
      Reharmonisation is __________.

      playing music at a faster tempo
      changing melody while keeping the same harmony
      Correct answer: changing harmony while keeping the same melody
      adding percussion to a piece

      Q6.
      Which of these is not a harmonic device?

      pedal
      dissonance
      Correct answer: melody
      chord

      6 Questions

      Q1.
      __________ is the opposite of dissonance.

      Correct answer: consonance
      harmony
      pedal
      chromatic

      Q2.
      What feeling does dissonance create?

      Correct Answer: tension, suspense

      Q3.
      A __________ is a harmonic device where the same bass note plays under changing chords.

      chromatic
      drone
      Correct answer: pedal
      cadence

      Q4.
      A pedal most often uses the __________ note.

      Correct Answer: tonic

      Q5.
      In the key of G major, what is the tonic?

      Correct Answer: G

      Q6.
      Which are effective ways of creating dissonance?

      Correct answer: using adjacent notes
      Correct answer: adding chromatic notes
      staying strictly within the key
      Playing very quietly

      To help you plan your 10 music lesson on: Using harmonic devices in film music, download all teaching resources for free and adapt to suit your pupils' needs...