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interval
Image: Wikimedia Commons

interval

Physical quantity; ratio between two sonic frequencies, often measured in cents, a unit derived from the logarithm of the frequency ratio

EntityQ189962

Also known as musical interval · pitch interval · music interval

Overview

All data

40 statements · 23% with external sources · numbers in brackets are citations

Defining formula
  • n_\text{semitones } = 12 \cdot \log_2 \left( \frac{f_2}{f_1} \right)
  • n_\text{cents} = 1200 \cdot \log_2 \left( \frac{f_2}{f_1} \right)
In defining formula

On other databases

27 identifiers linking interval across the web's reference databases