The English mathematician and philologist Alexander John Ellis (1814-1890) proposed the use of cents for measuring musical intervals.

We will explain the mathematical basis of the concept, discuss the subject without requiring advanced mathematical knowledge, and emphasize practical application.

How do you measure musical intervals? The mathematical ratio of the intervals Comparing intervals by mathematical ratio Comparing intervals using cents Cents, powers and logarithms From logarithms to cents How do we calculate the cents separating two notes? How do we calculate the frequency of a second note according to the cents that separate it? Comparisons with cents Reference and calculators

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