Ch. 13: Harmonic Function (Prolongation + Phrase Model)

Three categories of harmonic function

Tonic, predominant, dominant.

Tonic

I

Predominant

IV, VI, ii

Dominant

V, vii

Tonic substitute

When V moves to vi, vi acting as a false tonic.

Dominant substitute

When iii substitutes for V, only when the deceptive chord shares two common tones with the triad it is substituting.

Interrupted Period

1) T-PD-D, HC finish

2) T-PD-D-T, PAC finish

Continuous Period

1) T-PD-D, HC finish

2) D-T, PAC finish

Prolongation

Extending a chord/harmonic area with slight deviations in the chord.

Dominant Prolongation

Prolongation of V.

Pedal Prolongation

Prolongation with no movement in the bass.

Incomplete Neighbor Prolongation

Prolongation involving an appoggiatura or escape tone in the bass line.

Chordal Skip Prolongation

Prolongation through a change of inversion, not chord.