Oleg Zabluda's blog
Sunday, April 15, 2018
 
"""
"""
An equal temperament is a musical temperament, or a system of tuning, in which the frequency interval between every pair of adjacent notes has the same ratio. [...] the most common tuning system for the past few hundred years has been and remains twelve-tone equal temperament [...] which divides the octave into 12 parts, all of which are equal on a logarithmic scale, with a ratio equal to the 12th root of 2 (12√2 ≈ 1.05946). That resulting smallest interval, ​1⁄12 the width of an octave, is called a semitone or half step. In modern times, 12TET is usually tuned relative to a standard pitch of 440 Hz, called A440, meaning one note is tuned to A440, and all other notes are some multiple of semitones away from that in either direction. (The standard pitch has not always been 440 Hz. It has varied and generally risen over the past few hundred years.)
"""
https://en.wikipedia.org/wiki/Equal_temperament
https://en.wikipedia.org/wiki/Equal_temperament

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