Exploring Chord Inversions in Music Theory

Apr 25, 2025

Lecture on Chord Inversions

Introduction to Chord Inversions

  • Presenter: Gareth Green
  • Topic: Understanding chord inversions in music theory, focusing on the key of F major.

Constructing Basic Chords

  • Key: F major scale used as a basis.
    • First seven notes: F, G, A, Bâ™­, C, D, E
  • Chord Construction:
    • Add a third and a fifth above each scale note.
    • Roman numerals used for diatonic chords: I, II, III, IV, V, VI, VII.
  • Four-Part Harmony:
    • Convert 3-note chords to 4-part by doubling a note.
    • Example: Chord I (F, A, C) can be arranged as F (bass), F (alto), A (top), C (tenor).

Understanding Inversions

  • Root Position: Lowest note of the triad is the bass note.
  • First Inversion:
    • Example: A at the bottom (Chord I becomes Ib or I6).
    • Confusion: A in bass doesn’t imply Chord III if notes are F, A, C.
  • Second Inversion:
    • Example: C at the bottom (Chord I becomes Ic or I6,4).
    • Used less frequently as they sound incomplete alone and often need resolution.

Purpose of Chord Inversions

  • Variety in Music:
    • Prevents monotony in using only root position chords.
    • Allows for different chord choices and inversions.
  • Sound and Resolution:
    • Root and first inversions sound complete; second inversions seek resolution.

Recognizing Chord Inversions

  • Identify:
    • Determine the notes in a chord.
    • Match notes to a triad.
    • Identify lowest note to find inversion.
    • Example: Chord V (C, E, G) with E in the bass is in first inversion, labeled as Vb or V6.

Notation Differences

  • UK vs US:
    • UK: First inversion (Ib), Second inversion (Ic)
    • US: First inversion (I6), Second inversion (I6,4)
  • Root Position: Typically notated as I, but can be Ia or I5,3.

Further Learning Resources

  • Music Matters Website: www.mmcourses.co.uk
    • Courses available:
      • Advanced Theory Course
      • Keyboard Harmony Course
      • Aural Dictation Course
  • Maestros Group:
    • Monthly live streams to share music and learn more.

Conclusion

  • Encouragement: Explore using inversions in composing and playing music to add depth and variety.
  • Engagement: Look into additional resources for further study on chords and harmony.

Full transcript