The harmonic function of a chord in a key, from its root's offset above the tonic. The mapping follows common-practice major-key function and is a useful approximation in minor and for borrowed chords.
The chord.
The prevailing key.
The harmonic function.
The harmonic function of a chord in a key, from its root's offset above the tonic. The mapping follows common-practice major-key function and is a useful approximation in minor and for borrowed chords.