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Music theory basics · updated 2026-08-16

CENTS

A hundredth of a semitone. Tuning software and pitch correction both measure error in cents.

Photograph of a printed score of Mozart's Rondo alla Turca open on a music desk, showing staves, key signature and note heads — the written notation this section defines.
Music theory basics — Photograph of a printed score of Mozart's Rondo alla Turca open on a music desk, showing staves, key signature and note heads — the written notation this section defines.

Photo: Music Sheet, Mozart's Alla Turca (opens in a new tab) by Schiller12 (opens in a new tab), via Wikimedia Commons — CC BY-SA 4.0 (opens in a new tab)

Key takeaways

  • A hundredth of a semitone.
  • Tuning software and pitch correction both measure error in cents.
  • Trained listeners notice pitch errors of roughly five to ten cents on exposed sustained notes, while small detunes of five to twenty cents between layers are used deliberately to thicken sounds.
  • Duplicating a synth layer and detuning the copy by twelve cents creates width without adding a second oscillator.
  • Watch out: tuning vocals to zero cents everywhere.

Quick checklist

  • Can you define cents in one sentence without looking?
  • Can you point at cents in a real session, mix or contract?
  • Have you tried the practical move above at least once?
  • Would you catch the common mistake before it costs you a take?
  • Have you opened one of the primary sources below rather than a forum thread?

CENTS IN DEPTH

A cent is one hundredth of a semitone, which gives you a fine ruler for tuning work. Trained listeners notice pitch errors of roughly five to ten cents on exposed sustained notes, while small detunes of five to twenty cents between layers are used deliberately to thicken sounds.

How it works in practice

Duplicating a synth layer and detuning the copy by twelve cents creates width without adding a second oscillator.

The mistake people make

Tuning vocals to zero cents everywhere. Perfectly centred pitch across a whole take reads as artificial; leaving natural drift on sustains keeps it human.

WHERE CENTS SITS

Cents belongs to music theory basics in the Sampled music glossary. The vocabulary you need before anyone can explain a chart, a chord chart, or a session to you.

TEST YOURSELF

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3 quick questions on cents. Answers are marked instantly — nothing is sent anywhere.

  1. 1. Which statement best describes cents?

  2. 2. What is the mistake people most often make with cents?

  3. 3. In practice, which of these applies to cents?

Ready for the full thing? Take the 25-question terminology test and get a certificate with your name and score.

SOURCES AND CITATIONS

Free, primary references for cents — standards bodies, manufacturers, government offices and university course material. Each one lists the line of this entry it backs up.

  • NIST — units and measurement (opens in a new tab)

    Government agency · U.S. federal agency

    “A hundredth of a semitone.”— the claim this source supports

    Why it counts: Official measurement and exposure guidance — the reference the numbers in this entry are taken from.

  • AES — technical library (opens in a new tab)

    Professional standards body · Audio Engineering Society

    “Tuning software and pitch correction both measure error in cents.”— the claim this source supports

    Why it counts: AES writes and reviews the engineering standards and peer-reviewed papers this terminology comes from.

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