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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…

  1. change the key
  2. sound too dissonant
  3. reduce voice independence
  4. are impossible to sing
Show the answer

C. Common practice.

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