1/1: Difference between revisions

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The '''unison''' (interval ratio '''1/1''') is the [[interval]] between two tones that are identical in pitch. In the [[harmonic series]], 1/1 is the 1st [[harmonic]], and likewise in the [[subharmonic series]] 1/1 is the first [[subharmonic]] – this is because it acts as the fundamental to both series.
The '''unison''' (interval ratio '''1/1''') is the [[interval]] between two tones that are identical in pitch. In the [[harmonic series]], 1/1 is the 1st [[harmonic]], and likewise in the [[subharmonic series]] 1/1 is the first [[subharmonic]] – this is because it acts as the fundamental to both series.


Measured in [[cent]]s (or any other logarithmic measure such as [[2/1|octave]]s, [[edo|edosteps]], etc.), the unison's size is exactly 0. This is because the distance between two identical pitches is zero. As such, the unison can be considered as a degenerate interval.
Measured in [[cent]]s (or any other logarithmic measure such as [[octave]]s, [[edo|edosteps]], etc.), the unison's size is exactly 0. This is because the distance between two identical pitches is zero. As such, the unison can be considered as a degenerate interval.


In [[just intonation]], 1/1 represents the base frequency from which an interval is measured.
In [[just intonation]], 1/1 represents the base frequency from which an interval is measured.
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