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      Understanding arpeggios and Alberti bass

      Lesson details

      Learning outcome

      I can use triadic harmony to add arpeggios and an alberti bass to a ground bass pattern.

      Key learning points

      1. Arpeggios and Alberti bass patterns are a variation on the triad chord.
      2. Arpeggios and Alberti bass patterns can be used to add interest to an existing chord sequence and ground bass.
      3. The Alberti bass has a distinctive, specific pattern.
      4. Playing arpeggios and an Alberti bass and added one or both to a ground bass pattern.

      Keywords

      • Arpeggio - A group of notes from a chord played one after the other, either ascending or descending

      • Alberti bass - A group of notes rom a chord played in a specific pattern of lowest note, highest note, middle note, highest note

      • Octave - an interval of eight notes, e.g. a C and the next C (higher or lower) are an octave apart

      Common misconception

      An Alberti bass is the notes of the triad played in any order.

      An Alberti bass has a specfic, distinctive pattern which uses the lowest note, highest note, middle note, highest note of the triad in that order.

      Teacher tip

      Alberti bass and arpeggios are used to encourage development of ideas. Pupils can use other rhythms and patterns to extend their pattern but should be encouraged to use a consistent pattern for each chord. Pupils could also play the pattern in the right hand and the ground bass in the left.

      Equipment

      Keyboard instrument

      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.
      What is a triad chord?

      two notes played together
      four notes played together
      Correct answer: three notes built on the root, third, and fifth
      one note repeated three times

      Q2.
      To create triadic harmony, we use the , third, and fifth notes of the scale.

      Correct Answer: root

      Q3.
      What is another name for a broken chord?

      triad
      octave
      minim
      Correct answer: arpeggio

      Q4.
      A quaver lasts for how long in 4/4 time?

      one beat
      Correct answer: half a beat
      two beats
      four beats

      Q5.
      An interval of eight notes is called an ...

      Correct Answer: octave

      Q6.
      What gives a piece of music rhythmic drive?

      Correct answer: a constant rhythmic pattern
      sudden pauses
      irregular silences
      slow tempo

      6 Questions

      Q1.
      What is an arpeggio?

      Correct answer: notes of a chord played one after the other, ascending or descending
      three notes played together
      two notes repeated
      four chords played at once

      Q2.
      What is an Alberti bass?

      a scale played in octaves
      a chord played only in the right hand
      Correct answer: a bass pattern: lowest–highest–middle–highest
      a repeated dominant note

      Q3.
      Which of these best describes the Alberti bass pattern?

      root – third – fifth – third
      Correct answer: lowest – highest – middle – highest
      highest – lowest – middle – lowest
      root – fifth – root – third

      Q4.
      An interval of eight notes (e.g. C to the next C) is called an ...

      Correct Answer: octave

      Q5.
      Why is it important in keyboard playing to move notes up or down the octave?

      to confuse the listener
      to make the piece quieter
      Correct answer: to stop parts from overlapping and to create variety
      to avoid using chords

      Q6.
      How do constant quavers in Alberti bass or arpeggios affect the music?

      they make the music slower
      Correct answer: they give rhythmic drive and momentum
      they weaken the harmony
      they remove texture

      To help you plan your 9 music lesson on: Understanding arpeggios and Alberti bass, download all teaching resources for free and adapt to suit your pupils' needs...