harmonic progression
Harmonic language
western music of the “common practice era” developed around a set of melodic and harmonic conventions:
tonal system: all pitches/chords heard in relation to tonic
directional harmony: tonic —> harmonic travel —> tonic
harmonic function: each chord progression possesses a T, PD, or D function
Tonal music: Music based on the tonic
tonic function- I(i), vi(VI)
dominant function- V and V7(V and V7), viio and viio7(viio and viio7)
predominant- vi(VI), IV(iv), ii(iio)
NEVER USE iii
Patterns for functional progressions
T—> D —> T
or
T —> PD —> D —> T
cannot go: D —> PD —> T (harmonic retrogression)