Rhythm

Rhythm comes from the Greek word rhythmos, meaning regular recurring motion or symmetry. It describes any pattern that repeats in time, like the beat in a song or the steps in a dance. Rhythm can be found in many places, from the sounds we hear to the way we move our bodies.

In music and poetry, rhythm is the way words and notes are arranged with strong and weak parts. It helps give a feeling of flow and order. For example, in hip hop music, the way the words are spoken to the beat is very important.

Rhythm is not just in sound; it can also be seen in visual arts. Architects might talk about the rhythm of a building, looking at how spaces and shapes repeat. Scholars have written many books about rhythm and how it works in music and other art forms.

Anthropology

Joseph Jordania suggested that humans developed a sense of rhythm very early in our history, helped by natural selection. Many animals walk in a sort of rhythm and hear their heartbeat while they are inside their mothers, but only humans can join together in activities that follow a rhythm, like singing or dancing. Jordania believes that this ability to feel rhythm was very important for early humans, helping them to work together as a group during dangerous times.

Some birds, like certain kinds of parrots, can understand rhythm. Neurologist Oliver Sacks said that while other animals don’t seem to feel rhythm in the same way humans do, our love for rhythm is a basic part of being human. He explained that no animal has ever been taught to move in time with music, though some animals may seem to dance because they notice small movements from people around them.

To have a steady beat, we need to hear a series of short, clear sounds. Because we notice loud sounds more when it’s quiet around us, each sound needs to end before the next one starts. This is why percussion instruments, which make quick, sharp sounds, are great for creating rhythm. Some musical traditions, like in parts of Africa and in Indonesian gamelan music, use complex rhythms that happen at the same time in different ways.

For information on rhythm in Indian music, see Tala (music). For other Asian approaches to rhythm see Rhythm in Persian music, Rhythm in Arabic music and Usul—Rhythm in Turkish music and Dumbek rhythms.

Terminology

Further information: Pulse (music) and Beat (music)

Music and dance often have a basic beat that we can feel. This beat helps us move with the music. It can be fast or slow, and we usually feel it as a strong and regular pulse. In music, this beat is like a heartbeat, guiding how we tap our feet or move our bodies.

Rhythm is about patterns in time. These patterns can be simple, like steady beats, or more complex, with strong and weak parts. We can also have patterns that don’t follow the beat exactly, called syncopation. Rhythm helps us predict what will happen next in music, making it more enjoyable to listen to and move with.

Composite rhythm

A composite rhythm is made when you combine all the different parts of a musical piece. It shows the overall pattern of sounds and beats together. In older music, this rhythm usually matches the main beat, following simple and steady patterns. Some people also call this "attack point rhythm," which means the very fast, surface-level movement of sounds in a composition.

Counter rhythm

Since 1927, "Counter rhythm" has been understood as a smaller rhythm that balances the main rhythm. This phrase is not commonly used in everyday English, appearing very rarely in writing. Its use has mostly decreased over time, with a small increase in the 1970s. Earlier meanings of this term, such as those related to musical styles, are no longer used today.

In different traditions

African

In African tradition, music is shared through speaking rather than writing. A musician named Babatunde Olatunji created six simple sounds to teach drum rhythms. Some people debate whether to use written music for African styles, but many African scholars accept it to help discuss and share ideas.

John Miller suggests that West African music uses many rhythms together, called polyrhythms. These rhythms work together and sometimes oppose each other. Music in this tradition often repeats simple patterns and follows community values.

Indian

See also: Bol (music)

Indian music is also shared by speaking. Musicians would say rhythm patterns before playing them. In Indian classical music, the Tala is the rhythm pattern that structures the whole piece.

Western

In the 20th century, composers like Igor Stravinsky, Béla Bartók, Philip Glass, and Steve Reich created music with complex rhythms using unusual time patterns. Other composers, such as Olivier Messiaen, made music that made it hard to feel a steady beat. John Cage believed that regular rhythms group sounds together, while irregular rhythms let you hear each sound more clearly. La Monte Young wrote music without a steady beat, using long, sustained tones. Henry Cowell made music with many rhythms at once and helped create the first electronic rhythm machine with Leon Theremin. Conlon Nancarrow wrote music for player pianos.

Linguistics

Main article: Isochrony

In linguistics, rhythm is one of the three parts of how we speak, along with stress and intonation. Languages can be grouped by how they use time when speaking. For example, in syllable-timed languages like Spanish and Cantonese, each syllable gets about the same amount of time. But in stress-timed languages like English and Mandarin Chinese, the time between stressed syllables stays about the same, and the unstressed syllables change to fit this timing.

There are different ways rhythms can work, such as repeating the same length, or changing from short to long sounds. These rhythms can feel like closing up or relaxing, or opening up and feeling tense. However, some rhythms, like off-beat sounds, need other ideas to fully explain them.