Tone: Difference between revisions
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[[Category:Interval measure]] | [[Category:Interval size measure]] | ||
Revision as of 10:40, 9 June 2020
The Tone as an interval measure was already known in Ancient Greece. Aristoxenus (fl. 335 BC) defined the tone as the difference between the just fifth (3/2) and the just fourth (4/3). From this base size, he derived the size of other intervals as multiples or fractions of the tone, so for instance the just fourth was 21/2 tones in size.
From a technical perspective, the tone as an interval with frequency ratio 9/8 and a size of ca. 204 cents is exactly the same as the major diatonic second.