Harmonic Function, Cadence and Phrase
What is tested
You identify cadences — authentic, half, plagal and deceptive — and describe how phrases group into periods and sentences. Function is the organizing idea behind most of the free-response questions.
Common mistakes
Cadences get labeled from the last two roman numerals without checking the voicing. A perfect authentic cadence requires both chords in root position and the tonic in the soprano; anything else is imperfect authentic.
Practice with
The tool below checks your answer against the theory engine, so you get the same verdict a marker would.