Simultaneity may refer to:
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Relativity of simultaneity
In physics, the relativity of simultaneity is the concept that ''distant simultaneity'' – whether two spatially separated events occur at the same time – is not absolute, but depends on the observer's reference frame. This possi ...
, a concept in special relativity.
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Simultaneity (music), more than one complete musical texture occurring at the same time, rather than in succession
* Simultaneity, a concept in
Endogeneity
See also
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Non-simultaneity
Non-simultaneity or nonsynchronism (German: ''Ungleichzeitigkeit'', sometimes also translated as non-synchronicity) is a concept in the writings of Ernst Bloch which denotes the time lag, or uneven temporal development, produced in the social sphe ...
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Diversity factor, or simultaneity factor
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Time Structured Mapping
Time Structured Mapping (TSM) is a score based system created and used by the composer Pete M Wyer. It uses the bar-lines found in conventional musical scores to indicate durational periods during which performers, who may include actors, sing ...
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