Music theory / AP
AP Music Theory: what the course covers and how to study for it
AP Music Theory rewards two things almost equally: knowing the written theory, and being able to hear it under time pressure. Most students prepare well for the first and badly for the second, and that is where the marks go.
AP Music Theory is a college-level course in tonal harmony and musicianship. The written content is broadly a first-year undergraduate theory course. What makes the exam distinctive is that a large share of it is aural: dictation, listening analysis, and sight singing. You cannot cram those.
What the course covers
- Pitch, rhythm, metre, and notation, including clefs and key signatures.
- Intervals, scales, modes, and the circle of fifths.
- Triads and seventh chords, inversions, and figured bass.
- Diatonic harmony and voice leading in four parts.
- Cadences and phrase structure. See what is a cadence.
- Non-chord tones: passing, neighbour, suspension, anticipation, appoggiatura.
- Secondary dominants and applied chords.
- Modal mixture and basic modulation to closely related keys.
- Melodic and harmonic dictation, and sight singing.
The part people underprepare
Melodic dictation, harmonic dictation, and sight singing together carry a substantial share of the exam, and they are perceptual skills. Perceptual skills consolidate through frequent short exposure over months, not through a fortnight of intense revision. If you take one thing from this page: start the aural work first and keep it daily.
Twenty minutes a day of solfege and interval training from the start of the course will move your score more than any amount of late written revision.
A study plan that fits a school year
| Period | Written focus | Daily aural work |
|---|---|---|
| Term 1 | Notation, intervals, scales, key signatures, triads | Solfege scale degrees; simple interval recognition |
| Term 2 | Four-part writing, figured bass, cadences, non-chord tones | Melodic dictation in 2 and 4 bars; sing every exercise |
| Term 3 | Secondary dominants, mixture, modulation, form | Harmonic dictation; bass line and Roman numerals |
| Final 6 weeks | Timed full papers, error analysis | Full-length dictation under exam timing |
Voice leading is where written marks are lost
Four-part writing is graded against specific rules, and the same handful of errors account for most lost marks: parallel fifths and octaves, unresolved leading tones, doubled leading tones, and spacing gaps of more than an octave between upper voices. Learn to check for those four things mechanically at the end of every exercise, in that order.
Aldwell and Schachter treat voice-leading errors as failures of independence between lines rather than as arbitrary prohibitions: parallel perfect intervals are proscribed because they collapse two voices into one perceptually, which defeats the purpose of writing in parts at all. Students who learn the reason retain the rule far better than those who memorise the list.
Aldwell & Schachter, Harmony and Voice Leading, 5th ed.
Sub-pages
Three companion pages go deeper: the exam format and scoring, how to use practice tests properly, and an honest answer on difficulty.
Exam structure is revised from time to time. Always confirm the details for your exam year against the current Course and Exam Description on the College Board site before you build a study plan around them.
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