Polyrhythm is the simultaneous use of two or more rhythms that are not readily perceived as deriving from one another, or as simple manifestations of the same meter. The rhythmic layers may be the basis of an entire piece of music (cross-rhythm), or a momentary section. Polyrhythms can be distinguished from irrational rhythms, which can occur within the context of a single part; polyrhythms require at least two rhythms to be played concurrently, one of which is typically an irrational rhythm. Concurrently in this context means within the same rhythmic cycle. The underlying pulse, whether explicit or implicit can be considered one of the concurrent rhythms. For example, the son clave is poly-rhythmic because its 3 section suggests a different meter from the pulse of the entire pattern.
In music, hemiola is the ratio 3:2. The equivalent Latin term is sesquialtera. In rhythm, hemiola refers to three beats of equal value in the time normally occupied by two beats. In pitch, hemiola refers to the interval of a perfect fifth.
The clave is a rhythmic pattern used as a tool for temporal organization in Brazilian and Cuban music. In Spanish, clave literally means key, clef, code, or keystone. It is present in a variety of genres such as Abakuá music, rumba, conga, son, mambo, salsa, songo, timba and Afro-Cuban jazz. The five-stroke clave pattern represents the structural core of many Cuban rhythms. The study of rhythmic methodology, especially in the context of Afro-Cuban music, and how it influences the mood of a piece is known as clave theory.
Latin jazz is a genre of jazz with Latin American rhythms. The two main categories are Afro-Cuban jazz, rhythmically based on Cuban popular dance music, with a rhythm section employing ostinato patterns or a clave, and Afro-Brazilian jazz, which includes samba and bossa nova.
In music, the terms additive and divisive are used to distinguish two types of both rhythm and meter:
In music, the term period refers to certain types of recurrence in small-scale formal structure. In twentieth-century music scholarship, the term is usually used as defined by the Oxford Companion to Music: "a period consists of two phrases, antecedent and consequent, each of which begins with the same basic motif." Earlier usage varied somewhat, but usually referred to similar notions of symmetry, recurrence, and closure. The concept of a musical period originates in comparisons between music structure and rhetoric at least as early as the 16th century.
Cycle has several meanings in the field of music. Acoustically, it refers to one complete vibration, the base unit of Hertz being one cycle per second. Theoretically, an interval cycle is a collection of pitch classes created by a sequence of identical intervals. Individual pieces that aggregate into larger works are considered cycles, for example, the movements of a suite, symphony, sonata, or string quartet. This definition can apply to everything from settings of the Mass or a song cycle to an opera cycle. Cycle also applies to the complete performance of an individual composer's work in one genre.
The Ewe people are a Gbe-speaking ethnic group. The largest population of Ewe people is in Ghana, and the second largest population is in Togo. They speak the Ewe language which belongs to the Gbe family of languages. They are related to other speakers of Gbe languages such as the Fon, Gen, Phla /Phera, Ogun/Gun, Maxi, and the Aja people of Togo and Benin.
Contradanza is the Spanish and Spanish-American version of the contradanse, which was an internationally popular style of music and dance in the 18th century, derived from the English country dance and adopted at the court of France. Contradanza was brought to America and there took on folkloric forms that still exist in Bolivia, Mexico, Venezuela, Colombia, Peru, Panama and Ecuador.
Kpanlogo is a recreational dance and music form originating from the 1960s among urban youth in Accra, Ghana.
Ewe drumming refers to the drumming ensembles of the Ewe people of Ghana, Togo, and Benin. The Ewe are known for their experience in drumming throughout West Africa. The sophisticated cross rhythms and polyrhythms in Ewe drumming are similar to those in Afro-Caribbean music and late jazz. The original purpose of Ewe drumming were sung or performed by warriors. Now the songs and performed to celebrate or for recreational use. For example, Agbadza was originally used as a warrior dance but is now used to celebrate events.
Rumba is a secular genre of Cuban music involving dance, percussion, and song. It originated in the northern regions of Cuba, mainly in urban Havana and Matanzas, during the late 19th century. It is based on African music and dance traditions, namely Abakuá and yuka, as well as the Spanish-based coros de clave. According to Argeliers León, rumba is one of the major "genre complexes" of Cuban music, and the term rumba complex is now commonly used by musicologists. This complex encompasses the three traditional forms of rumba, as well as their contemporary derivatives and other minor styles.
Jazz drumming is the art of playing percussion in jazz styles ranging from 1910s-style Dixieland jazz to 1970s-era jazz fusion and 1980s-era Latin jazz. The techniques and instrumentation of this type of performance have evolved over several periods, influenced by jazz at large and the individual drummers within it. Stylistically, this aspect of performance was shaped by its starting place, New Orleans, as well as numerous other regions of the world, including other parts of the United States, the Caribbean, and Africa.
In music, the term swing has two main uses. Colloquially, it is used to describe the propulsive quality or "feel" of a rhythm, especially when the music prompts a visceral response such as foot-tapping or head-nodding. This sense can also be called "groove".
A bell pattern is a rhythmic pattern of striking a hand-held bell or other instrument of the idiophone family, to make it emit a sound at desired intervals. It is often a key pattern, in most cases it is a metal bell, such as an agogô, gankoqui, or cowbell, or a hollowed piece of wood, or wooden claves. In band music, bell patterns are also played on the metal shell of the timbales, and drum kit cymbals.
In music, a cross-beat or cross-rhythm is a specific form of polyrhythm. The term cross rhythm was introduced in 1934 by the musicologist Arthur Morris Jones (1889–1980). It refers to a situation where the rhythmic conflict found in polyrhythms is the basis of an entire musical piece.
Sub-Saharan African music is characterised by a "strong rhythmic interest" that exhibits common characteristics in all regions of this vast territory, so that Arthur Morris Jones (1889–1980) has described the many local approaches as constituting one main system. C. K. Ladzekpo also affirms the profound homogeneity of approach. West African rhythmic techniques carried over the Atlantic were fundamental ingredients in various musical styles of the Americas: samba, forró, maracatu and coco in Brazil, Afro-Cuban music and Afro-American musical genres such as blues, jazz, rhythm & blues, funk, soul, reggae, hip hop, and rock and roll were thereby of immense importance in 20th century popular music. The drum is renowned throughout Africa.
Tresillo is a rhythmic pattern used in Latin American music. It is a more basic form of the rhythmic figure known as the habanera.
Agbadza is an Ewe music and dance that evolved from the times of war into a very popular recreational dance. It came from a very old war dance called Atrikpui and usually performed by the Ewe people of the Volta Region of Ghana, particularly during the Hogbetsotso Festival, a celebration by the Anlo Ewe people. In addition, it is also performed by Togolese and Beninese of Ewe descent. The dance has five movements in performing it, 1. Banyinyi which is a short introductory in prayer to the gods and ancestors, 2. Vutsortsor which is the main dance, 3. Adzo- which is less energetic and only the master is made to drum along with Gankogui and Axatse, 4. Hatsatsa- historical songs are performed along with Gankogui and Atoke, 5. Vutsortsor- finally, another round of the main dance which usually last for a number of hours. Gankogui is an instrument in a form of a bell where a stick is used to play. Atoke is also an iron banana shaped bell and played with a small forged iron rod. The Atoke can be used in place of the Gankogui they are both used for the same purpose.
The musical structure of Salsa (music) is composed of several components and sections.
