Metric

     From Wikipedia, the free encyclopedia.

The Metric System is a common term for the International System of Units for weights and measures. See metrication.

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In mathematics, a metric (also called distance metric) is an abstraction of the notion of distance; it is used to define metric spaces. The article on metric spaces contains a detailed discussion of the topic.

See also:

• Metric tensor
• Normed vector space

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In music, metric and metrical refer to meter (music). Metric structure includes meter, tempo, and all rhythmic aspects which produce temporal regularity or structure, against which the foreground details or durational patterns are projected (DeLone et. al. (Eds.), 1975, chap. 3).

Rhythmic units be metric, intrametric, contrametric, or extrametric.

Metric levels may be distinguished. The beat level is the metric level at which pulses are heard as the basic time unit of the piece. Faster levels are division levels, and slower levels are multiple levels. (DeLone et. al. (Eds.), 1975, chap. 3).

A metric modulation is a modulation from one metric unit to another.

References

• DeLone et. al. (Eds.) (1975). Aspects of Twentieth-Century Music. Englewood Cliffs, New Jersey: Prentice-Hall. ISBN 0130493465.