AP Music Theory · Unit 4: Harmony & Voice Leading I
4.3 Voice Leading Basics (SATB)
Four voices
Chorale-style writing uses four voices: Soprano, Alto, Tenor, Bass (SATB). Keep upper voices close, resolve tendency tones, and move each voice smoothly.
Forbidden parallels
Avoid parallel fifths and parallel octaves between any two voices — they weaken the independence of the parts, a core voice-leading rule.
Tendency tones
The leading tone (scale degree 7) should resolve up to the tonic; the seventh of a chord should resolve down by step. Smooth, stepwise motion is preferred over large leaps.
Key terms
- SATB
- Soprano, Alto, Tenor, Bass
- Parallel 5ths/8ves
- forbidden — they weaken voice independence
- Leading tone
- scale degree 7, resolves up to the tonic
- Chord seventh
- resolves down by step
- Preferred motion
- smooth, stepwise, independent voices
Try an AP-style question
Parallel fifths are avoided because they…
- change the key
- sound too dissonant
- reduce voice independence
- are impossible to sing
Show the answer
C. Common practice.
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