Old Music Theory

1. Position Change
2. Chord Inversion

A Position Change (aka Voicing change) is successively placing a chord in two or more different positions, while leaving the bass, either in place or switched an octave. Examples:

A Chord Inversion is when a constituent note other than the root is placed in the Bass. Example:

Even though an inversion appears to only be a position change, the influence of a chord inversion on the effect of the chord is infinitely more characteristic than a simple position change. Therefore, a complete distinction will be made between the inversion of the chord, and the various positions a chord may undergo, whatever its inversion.

However, when various inversions of the same chord are successively used without any inversion having more importance than the others like duration, they are simply considered position changes. Examples:

For this reason, all the following articles concerning position changes generally also applies to chord inversion changes.