Context: Polyrhythm is the simultaneous use of two or more conflicting rhythms, that are not readily perceived as deriving from one another, or as simple manifestations of the same meter. The rhythmic conflict may be the basis of an entire piece of music (cross-rhythm), or a momentary disruption. 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., Timothy Zachery "Tim" Mosley (born March 10, 1972), known professionally as Timbaland, is an American record producer, singer, songwriter, rapper and DJ. Timbaland's first full credit production work was in 1996 on "Ginuwine...the Bachelor" for R&B singer Ginuwine. After further work on Aaliyah's 1996 album "One in a Million" and Missy Elliott's 1997 album "Supa Dupa Fly", Timbaland became a prominent producer for R&B and hip hop artists. As a rapper he initially released several albums with fellow rapper Magoo, followed by his debut solo album "" in 1998. In 2002, Timbaland produced the hit single "Cry Me a River" for Justin Timberlake, going on to produce most of Timberlake's subsequent LPs such as "FutureSex/LoveSounds" and "The 20/20 Experience" and their respective hit singles. A Timbaland-owned imprint label, Mosley Music Group, featured artists such as Nelly Furtado, whose Timbaland-produced album "Loose" (2006) was a commercial and critical success. In 2007, Timbaland released a solo album, "Shock Value", which was followed by "Shock Value II" in 2009., Billion Dollar Gravy is a drum n bass album by London Elektricity released in 2003 . The album is known for its usage of live musicians , such as the Jungle Drummer ( drums ) , Liane Carroll ( jazz vocals ) , Andy Waterworth ( upright bass ) , Robert Owens ( vocals ) , and others , much like London Elektricity 's debut , Pull the Plug ., West Africa, also called Western Africa and the West of Africa, is the westernmost subregion of Africa. West Africa has been defined as including 18 countries: Benin, Burkina Faso, the island nation of Cape Verde, Gambia, Ghana, Guinea, Guinea-Bissau, Ivory Coast, Liberia, Mali, Mauritania, Niger, Nigeria, the island of Saint Helena, Senegal, Sierra Leone, São Tomé and Príncipe and Togo., Gerald Simpson (born 16 February 1967, Moss Side, Manchester, England), better known as A Guy Called Gerald, is a British DJ, record producer and musician., Liane Carroll (born 9 February 1964, London) is an English pianist and vocalist., Chris Polglase (born 12 January 1978 in Newcastle), known professionally as The Jungle Drummer, is an electronic music session drummer. He is most noted for his work with DJ Fu (who mixed and scratched while Polglase performed) and live drum and bass act London Elektricity. He has also performed with artists such as Grooverider, Timbaland, A Guy Called Gerald, and others., Ragtime  also spelled rag-time or rag time  is a musical genre that enjoyed its peak popularity between 1895 and 1918. Its cardinal trait is its syncopated, or "ragged", rhythm. The genre has its origins in African-American communities like St. Louis years before being published as popular sheet music for piano. Ernest Hogan (18651909) was a pioneer of ragtime music and was the first to compose ragtime into sheet music. The composition was called "LA Pas Ma LA" and it was released in 1895. Hogan has also been credited for coining the term "ragtime". The term is actually derived from his hometown "Shake Rag" in Bowling Green, Kentucky. Ben Harney, who is also a Kentucky native has often been credited for introducing the music to the mainstream public. His first ragtime composition "You've been a good old wagon but you done broke" helped popularize the musical genre. The composition was published in 1895 but released in 1896. Ragtime was also a modification of the march made popular by John Philip Sousa, with additional polyrhythms coming from African music. The ragtime composer Scott Joplin ("ca." 18681917) became famous through the publication of the "Maple Leaf Rag" (1899) and a string of ragtime hits such as "The Entertainer" (1902), although he was later forgotten by all but a small, dedicated community of ragtime aficionados until the major ragtime revival in the early 1970s. For at least 12 years after its publication, "Maple Leaf Rag" heavily influenced subsequent ragtime composers with its melody lines, harmonic progressions or metric patterns., Tony Colman, better known by his stage name London Elektricity, is a drum and bass producer and DJ. Colman is also the co-founder and CEO of Hospital Records., Hospital Records is an independent record label based in South London. Primarily releasing drum and bass, the label was started in 1996 by Tony Colman and Chris Goss, and has grown in recent years to become one of the most well known labels within UK dance music. The label is home to artists such as London Elektricity, Danny Byrd, Camo & Krooked, Logistics, , Metrik, Fred V & Grafix and S.P.Y but also releases tracks from a whole host of other artists across the DnB genre. From its HQ in Forest Hill, South London, Hospital also runs the more experimental label Med School, as well as publishing company "Songs In The Key Of Knife" and their worldwide events brand "Hospitality"., The Jazz Age was a period in the 1920s, ending with the Great Depression, in which jazz music and dance styles became popular, mainly in the United States, but also in Britain, France and elsewhere. Jazz originated in New Orleans as a fusion of African and European music and played a significant part in wider cultural changes in this period, and its influence on pop culture continued long afterwards. The Jazz Age is often referred to in conjunction with the Roaring Twenties., Jazz is a music genre that originated amongst African Americans in New Orleans, United States, in the late 19th and early 20th centuries. Since the 1920s jazz age, jazz has become recognized as a major form of musical expression. It emerged in the form of independent traditional and popular musical styles, all linked by the common bonds of African American and European American musical parentage with a performance orientation. Jazz is characterized by swing and blue notes, call and response vocals, polyrhythms and improvisation. Jazz has roots in West African cultural and musical expression, and in African-American music traditions including blues and ragtime, as well as European military band music. Although the foundation of jazz is deeply rooted within the Black experience of the United States, different cultures have contributed their own experience and styles to the art form as well. Intellectuals around the world have hailed jazz as "one of America's original art forms"., Subject: billion dollar gravy, Relation: record_label, Options: (A) 1996 (B) a guy called gerald (C) album (D) conflict (E) english (F) france (G) hospital records (H) island (I) leaf (J) melody (K) mosley music group (L) pop (M) record (N) record label
Output: hospital records