Chord inversions are techniques used in music to re-order the notes of a chord so that a note other than the root is in the bass. This method enhances smoothness in chord transitions and offers greater harmonic variety. While standard chords are built from the root, first and second inversions focus on placing the third and fifth in the bass, respectively.
  • Chord inversions change the bass note of a chord.
  • They improve transition smoothness between chords.
  • First and second inversions use the third and fifth as the bass note, respectively.

First Inversion

The first inversion of a chord places the third of the chord in the bass. This alteration gives the chord a distinct sound while maintaining its original harmonic function. Inversions are particularly useful for creating stepwise motion in bass lines, leading to more coherent musical phrases.
  • In first inversion, the third is the lowest note.
  • Provides a smooth transition to adjacent chords.
  • Enhances melodic coherence in bass lines.

Second Inversion

Second inversion involves placing the fifth of the chord in the bass. This inversion is less common than the first but is especially effective in suspended and dominant seventh chords. It adds a different flavor to the harmony while still supporting smooth voice leading.
  • In second inversion, the fifth is the lowest note.
  • Commonly used in dominant seventh chords.
  • Supports smooth voice leading and harmonic progressions.

Examples

Understanding how to apply chord inversions in real musical contexts can greatly enhance your playing and composition skills. Below are some practical examples using C major and its inversions.
Chord TypeRoot PositionFirst InversionSecond Inversion
MajorC-E-GE-G-CG-C-E
MinorC-Eb-GEb-G-CG-C-Eb
SeventhC-E-G-BbE-G-Bb-CG-Bb-C-E
Extended (9th)C-E-G-D-F#E-G-D-F#-CG-D-F#-C-E