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In music theory, the pulse is a series of uniformly spaced beats—either audible or implied that sets the tempo and is the scaffolding for the rhythm. By contrast, rhythm is always audible and can depart from the pulse. So while the rhythm may become too difficult for an untrained listener to fully match, nearly any listener instinctively matches the pulse by simply tapping uniformly, despite rhythmic variations in timing of sounds atop the pulse. The pulse may be audible or implied. The tempo of the piece is the speed of the pulse. If a pulse becomes too fast it would become a drone; one that is too slow would be perceived as unconnected sounds. When the period of any continuous beat is faster than 8–10 per second or slower than 1 per 1.5–2 seconds, it cannot be perceived as such. "Musical" pulses are generally specified in the range 40 to 240 beats per minute. The pulse is not necessarily the fastest or the slowest component of the rhythm but the one that is perceived as basic. This is currently most often designated as a crotchet or quarter note when written (see time signature). Pulse is related to and distinguished from rhythm (grouping), beats, and meter: A pulse is one of a series of regularly recurring, precisely equivalent ["undifferentiated"] stimuli. Like the tick of a metronome or a watch, pulses mark off equal units in the temporal continuum.... A sense of regular pulses, once established, tends to be continued in the mind and musculature of the listener, even though the sound has stopped.... The human mind tends to impose some sort of organization upon such equal pulses. ... [Pulse is] an important part of musical experience. Not only is pulse necessary for the existence of meter ["there can be no meter without an underlying pulse to establish the units of measurement"], but it generally, though not always, underlies and reinforces rhythmic experience. Meter is the measurement of the number of pulses between more or less regularly recurring accents.

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Accent (musique)

L’accent en musique permet de nuancer la note sur laquelle il se trouve, dans le sens d'une intensité plus forte, cela pour mettre la note en valeur. Au sens large, l'accent renvoie à l'ensemble des accentuations (staccato, staccatissimo, marcato, martellato, louré et tenuto). Au sens strict, laccent désigne exclusivement le martellato (noté « > »). Les accents contribuent à l'articulation et à la prosodie de l'interprétation d'une phrase musicale.

Additive rhythm and divisive rhythm

In music, the terms additive and divisive are used to distinguish two types of both rhythm and meter: A divisive (or, alternately, multiplicative) rhythm is a rhythm in which a larger period of time is divided into smaller rhythmic units or, conversely, some integer unit is regularly multiplied into larger, equal units. This can be contrasted with additive rhythm, in which larger periods of time are constructed by concatenating (joining end to end) a series of units into larger units of unequal length, such as a meter produced by the regular alternation of and .

Counting (music)

In music, counting is a system of regularly occurring sounds that serve to assist with the performance or audition of music by allowing the easy identification of the beat. Commonly, this involves verbally counting the beats in each measure as they occur, whether there be 2 beats, 3 beats, 4 beats, or even 5 beats. In addition to helping to normalize the time taken up by each beat, counting allows easier identification of the beats that are stressed.

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