In music a divisive rhythm is a rhythm in which a larger period of time is divided into smaller rhythmic units, this can be contrasted with additive rhythms, which are larger periods of time constructed from sequences of smaller rhythmic units added to the end of the previous unit. European metres are divisive. For example: 4/4 consist of one measure (whole note: 1) divided into a stronger first beat and slightly less strong second beat (half notes:12), which are in turn divided, by two weaker beats (quarter notes:1234), and again divided into still weaker beats (eight notes:1&2&3&4&). Music is an art, entertainment, or other human activity which involves organized sound, though definitions may vary. ... Rhythm (Greek ρυθμός = tempo) is the variation of the duration of sounds or other events over time. ... A rhythmic unit is a durational pattern which occupies a period of time equivalent to a pulse or pulses on an underlying metric level, as opposed to a rhythmic gesture. ... Additive rhythms are larger periods of time constructed from sequences of smaller rhythmic units added to the end of the previous unit. ... Metre is the measurement of a musical line into measures of stressed and unstressed beats, indicated in Western notation by a symbol called a time signature. ...