A clap is the

percussive A percussion instrument is a musical instrument that is sounded by being struck or scraped by a beater including attached or enclosed beaters or rattles struck, scraped or rubbed by hand or struck against another similar instrument. Ex ...

sound made by striking together two flat surfaces, as in the body parts of humans or animals. Humans clap with the palms of their

hands A hand is a prehensile, multi-fingered appendage located at the end of the forearm or forelimb of primates such as humans, chimpanzees, monkeys, and lemurs. A few other vertebrates such as the koala (which has two opposable thumbs on each "han ...

, often quickly and repeatedly to express appreciation or approval (see

applause Applause (Latin '','' to strike upon, clap) is primarily a form of ovation or praise expressed by the act of clapping, or striking the palms of the hands together. Audiences usually applaud after a performance, such as a concert, speech or ...

), but also in

rhythm Rhythm (from Greek , ''rhythmos'', "any regular recurring motion, symmetry") generally means a " movement marked by the regulated succession of strong and weak elements, or of opposite or different conditions". This general meaning of regular r ...

as a form of

body percussion Body percussion may be performed on its own or as an accompaniment to music and/or dance. Examples of countries' folk traditions that incorporate body percussion include Indonesian saman, Ethiopian armpit music, palmas in flamenco, and the hambone ...

to match the sounds in

music Music is the arrangement of sound to create some combination of Musical form, form, harmony, melody, rhythm, or otherwise Musical expression, expressive content. Music is generally agreed to be a cultural universal that is present in all hum ...

dance Dance is an The arts, art form, consisting of sequences of body movements with aesthetic and often Symbol, symbolic value, either improvised or purposefully selected. Dance can be categorized and described by its choreography, by its repertoir ...

chant A chant (from French ', from Latin ', "to sing") is the iterative speaking or singing of words or sounds, often primarily on one or two main pitches called reciting tones. Chants may range from a simple melody involving a limited set of no ...

hand game Hand games are games played using only the hands of the players. Hand games exist in a variety of cultures internationally, and are of interest to academic studies in ethnomusicology and music education. Hand games are used to teach music litera ...

s, and

clapping game A clapping game (or hand game) is a type of usually cooperative (i.e., non-competitive) game which is generally played by two players and involves clapping as a rhythmic accompaniment to a singing game or reciting of a rhyme, often nursery rhym ...

s. Some people slap the back of one hand into the palm of the other hand to signify urgency or

enthusiasm In modern usage, enthusiasm refers to intense enjoyment, interest, or approval expressed by a person. The term is related to playfulness, inventiveness, optimism, zest, verve, and high energy. The word was originally used to refer to a person ...

. This act may be considered uncouth by others. Clapping is used in many forms of music. In American music, clapping is popular in

funk Funk is a music genre that originated in African-American communities in the mid-1960s when musicians created a rhythmic, danceable new form of music through a mixture of various music genres that were popular among African-Americans in the ...

gospel Gospel originally meant the Christianity, Christian message ("the gospel"), but in the second century Anno domino, AD the term (, from which the English word originated as a calque) came to be used also for the books in which the message w ...

doo-wop Doo-wop (also spelled doowop and doo wop) is a subgenre of rhythm and blues music that originated in African-American communities during the 1940s, mainly in the large cities of the United States, including New York, Philadelphia, Pittsburgh, ...

and early

pop Pop or POP may refer to: Arts, entertainment, and media * Pop music, a musical genre Artists * POP, a Japanese idol group now known as Gang Parade * Pop! (British group), a UK pop group * Pop! featuring Angie Hart, an Australian band Album ...

. In

flamenco Flamenco () is an art form based on the various folkloric music traditions of southern Spain, developed within the Gitanos, gitano subculture of the region of Andalusia, and also having historical presence in Extremadura and Region of Murcia, ...

and , two Spanish musical genres, clapping is called '' palmas'' and often sets the rhythm and is an integral part of the songs. A

sampled Sample or samples may refer to: * Sample (graphics), an intersection of a color channel and a pixel * Sample (material), a specimen or small quantity of something * Sample (signal), a digital discrete sample of a continuous analog signal * Sample ...

or synthesized clap is also a staple of

electronic Electronic may refer to: *Electronics, the science of how to control electric energy in semiconductors * ''Electronics'' (magazine), a defunct American trade journal *Electronic storage, the storage of data using an electronic device *Electronic c ...

and pop music.

Musical works that include clapping

Classical works performed entirely by clapping *

Steve Reich Stephen Michael Reich ( ; born October 3, 1936) is an American composer best known as a pioneer of minimal music in the mid to late 1960s. Reich's work is marked by its use of repetitive figures, slow harmonic rhythm, and canons. Reich descr ...

, ''

Clapping Music ''Clapping Music'' is a minimalist music, minimalist piece written by American composer Steve Reich in 1972. It is written for two performers and is performed entirely by clapping. After a concert in Brussels during their 1972 tour of Europe, R ...

'' (1972) * Robert Paterson, ''Voices'' (1988) *

Pascal Zavaro Pascal Zavaro (born 3 October 1959) is a French composer. Life Zavaro studied at the Conservatoire de Paris. In his music, rhythmic thinking is predominant. The sources are very broad, from rock, Bartók, Stravinsky or some scores of Steve R ...

, ''Kino-Klap'' (2008) Classical works which include clapping *

Carlos Surinach Carlos Lund (or Carles Suriñach)
i Wrokona (; March 6, 1915 – November 12, 1997) was a Spanish-born

, ''Ritmo Jondo'' (1953) *

David Chesky David Chesky is an American pianist, composer, producer, arranger, and co-founder of the independent, audiophile label Chesky Records. He is also co-founder and CEO of HDtracks, an online music store that sells high-resolution digital music. Ch ...

, ''Flute Concerto'' et ''Violin Concerto'' The clapping patterns known as

keplok Keplok is a style of clapping used in Javanese gamelan. The clapping is in a specific interlocking rhythmic pattern and is performed by the gerong when they are not singing. It is usually associated with the lively ciblon (Surakarta) or batanga ...

are important in Javanese

gamelan Gamelan (; ; , ; ) is the traditional musical ensemble, ensemble music of the Javanese people, Javanese, Sundanese people, Sundanese, and Balinese people, Balinese peoples of Indonesia, made up predominantly of percussion instrument, per ...

. A type of synthesized clap is popular in many rap and

hip hop Hip-hop or hip hop (originally disco rap) is a popular music genre that emerged in the early 1970s from the African-American community of New York City. The style is characterized by its synthesis of a wide range of musical techniques. Hip- ...

songs as well. This is derived from and mimics the technique used in older popular music (e.g.

disco Disco is a music genre, genre of dance music and a subculture that emerged in the late 1960s from the United States' urban nightclub, nightlife, particularly in African Americans, African-American, Italian-Americans, Italian-American, LGBTQ ...

and

of the 1970s), in which multiple instances of real handclaps were recorded or a single recording was made of a group of performers clapping in unison. This was usually done for the purpose of reinforcing the

snare drum The snare drum (or side drum) is a percussion instrument that produces a sharp staccato sound when the head is struck with a drum stick, due to the use of a series of stiff wires held under tension against the lower skin. Snare drums are often u ...

beat on the 2nd and 4th beats of the bar ( offbeat). Modern R&B, hip hop, and rap often omit the snare drum, making the claps a more obvious and central feature of the beat.

Acoustics and medical applications

Clapping is useful in (medical) opening up blocked blood circulation. Clapping can be used in

acoustics Acoustics is a branch of physics that deals with the study of mechanical waves in gases, liquids, and solids including topics such as vibration, sound, ultrasound and infrasound. A scientist who works in the field of acoustics is an acoustician ...

to check the

reverberation In acoustics, reverberation (commonly shortened to reverb) is a persistence of sound after it is produced. It is often created when a sound is reflection (physics), reflected on surfaces, causing multiple reflections that build up and then de ...

time of a room. This is determined by measuring the clap's

decay time In electronics, fall time (pulse decay time) t_f is the time taken for the amplitude of a pulse to decrease (fall) from a specified value (usually 90% of the peak value exclusive of overshoot or undershoot) to another specified value (usually 10 ...

Pedagogical applications

Clapping is often used to help people recognize the rhythm in sounds. It can be used to help musicians count out rhythms. It is also used to teach

phonological awareness Phonological awareness is an individual's awareness of the phonological structure, or sound structure, of words. Phonological awareness is an important and reliable predictor of later reading (process), reading ability and has, therefore, been th ...

to students learning the ways words are constructed. They often clap out

syllables A syllable is a basic unit of organization within a sequence of speech sounds, such as within a word, typically defined by linguists as a ''nucleus'' (most often a vowel) with optional sounds before or after that nucleus (''margins'', which are ...

to learn to break words into their component sounds.

Sports and other pursuits

During

UEFA Euro 2016 The 2016 UEFA European Football Championship, commonly referred to as UEFA Euro 2016 (stylised as UEFA EURO 2016) or simply Euro 2016, was the 15th UEFA European Championship, the quadrennial international men's association football, football ch ...

, Iceland's fans became widely known for their ' volcano clap' (or 'Viking clap') with a 'huh' chant, though it originated with fans of Scottish club Motherwell F.C.

Canberra Raiders The Canberra Raiders are an Australian professional rugby league football club based in the national capital city of Canberra, Australian Capital Territory. They have competed in Australasia's elite rugby league competition, the National Rugb ...

fans subsequently adopted the 'Viking clap'. Similarly, fans of the

Minnesota Vikings The Minnesota Vikings are a professional American football team based in Minneapolis. The Vikings compete in the National Football League (NFL) as a member of the National Football Conference (NFC) NFC North, North division. Founded in 1960 as ...

have also adopted the 'Viking clap' to show support for the team, chanting '

skol Skol is an international lager brand produced by different companies in different parts of the world. The name is the English language variant of the Scandinavian drink toast "skål". For a time, the Hägar the Horrible cartoon character wa ...

' rather than the original 'huh' chant. In the mid 2010s, a practice of clapping as a way to emphasize talking points emerged among African American women, especially when clapping out individual syllables in words. This was pointed out in popular media by the comedian Robin Thede on ''

The Nightly Show with Larry Wilmore ''The Nightly Show with Larry Wilmore'' is an American late-night panel talk show hosted by Larry Wilmore that aired on Comedy Central from January 19, 2015, to August 18, 2016. The show was a spin-off of ''The Daily Show'', which featured Wi ...

''. It has since become more widely applied both online, often using the "hand clap" emoji, and in person.

Notes

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References