Pop, Rock & Disco charts

Heavy metal music

Heavy metal (or simply metal) is a genre of rock music[1] that developed in the late 1960s and early 1970s, largely in the United States and the United Kingdom. According to Grove Music Online, "Western-derived pop styles, whether coexisting with or marginalizing distinctively local genres, have spread throughout the world and have come to constitute stylistic common denominators in global commercial music cultures".[21] Some non-Western countries, such as Japan, have developed a thriving pop music industry, most of which is devoted to Western-style pop, has for several years has produced a greater quantity of music of everywhere except the USA.[21] The spread of Western-style pop music has been interpreted variously as representing processes of Americanization, homogenization, modernization, creative appropriation, cultural imperialism, and/or a more general process of globalization. Pop music (a term that originally derives from an abbreviation of "popular") is a genre of popular music, which originated in its modern form in the Western world during the 1950s and 1960s, deriving from rock and roll. The term "pop song" is first recorded as being used in 1926, in the sense of a piece of music "having popular appeal".[8] Hatch and Millward indicate that many events in the history of recording in the 1920s can be seen as the birth of the modern pop music industry, including in country, blues and hillbilly music. Rock music has also embodied and served as the vehicle for cultural and social movements, leading to major sub-cultures including mods and rockers in the UK and the hippie counterculture that spread out from San Francisco in the US in the 1960s. It is "not driven by any significant ambition except profit and commercial reward ... records for singles "revolutionized the manner in which pop has been disseminated" and helped to move pop music to 'a record/radio/film star system'.[19] Another technological change was the widespread availability of television in the 1950s; with televised performances, "pop stars had to have a visual presence".[19] In the 1960s, the introduction of inexpensive, portable transistor radios meant that teenagers could listen to music outside of the home.[19] Multi-track recording (from the 1960s); and digital sampling (from the 1980s) have also been utilized as methods for the creation and elaboration of pop music.[7] By the early 1980s, the promotion of pop music had been greatly affected by the rise of Music Television channels like MTV, which "favoured those artists such as Michael Jackson and Madonna who had a strong visual appeal". It is, "provided from on high (by record companies, radio programmers and concert promoters) rather than being made from below ... Rock places a higher degree of emphasis on musicianship, live performance, and an ideology of authenticity than pop music. As a genre, pop music is extremely eclectic, often borrowing elements from other styles including urban, dance, rock, Latin and country; nonetheless, there are core elements which define pop. records for singles "revolutionized the manner in which pop has been disseminated" and helped to move pop music to 'a record/radio/film star system'.[19] Another technological change was the widespread availability of television in the 1950s; with televised performances, "pop stars had to have a visual presence".[19] In the 1960s, the introduction of inexpensive, portable transistor radios meant that teenagers could listen to music outside of the home.[19] Multi-track recording (from the 1960s); and digital sampling (from the 1980s) have also been utilized as methods for the creation and elaboration of pop music.[7] By the early 1980s, the promotion of pop music had been greatly affected by the rise of Music Television channels like MTV, which "favoured those artists such as Michael Jackson and Madonna who had a strong visual appeal". The terms "popular music" and "pop music" are often used interchangeably, although the former is a description of music which is popular (and can include any style). According to Grove Music Online, the term "pop music" "originated in Britain in the mid-1950s as a description for rock and roll and the new youth music styles that it influenced ...".[10] The Oxford Dictionary of Music states that while pop's "earlier meaning meant concerts appealing to a wide audience ... Classically, a rock band takes the form of a quartet whose members cover one or more roles, including vocalist, lead guitarist, rhythm guitarist, bass guitarist, drummer and often that of keyboard player or other instrumentalist. Musically, rock has centered on the electric guitar, usually as part of a rock group with electric bass guitar and drums.

Hip hop music

Hip hop music, also called hip-hop or rap music, is a music genre consisting of a stylized rhythmic music that commonly accompanies rapping, a rhythmic and rhyming speech that is chanted. It has also made use of technological innovation. Typically, rock is song-based music usually with a 4/4 time signature using a verse-chorus form, but the genre has become extremely diverse. The term "pop song" is first recorded as being used in 1926, in the sense of a piece of music "having popular appeal".[8] Hatch and Millward indicate that many events in the history of recording in the 1920s can be seen as the birth of the modern pop music industry, including in country, blues and hillbilly music. Throughout its development, pop music has absorbed influences from most other genres of popular music. The dominance of rock by white, male musicians has been seen as one of the key factors shaping the themes explored in rock music. Throughout its development, pop music has absorbed influences from most other genres of popular music. Inheriting the folk tradition of the protest song, rock music has been associated with political activism as well as changes in social attitudes to race, sex and drug use, and is often seen as an expression of youth revolt against adult consumerism and conformity. Rock places a higher degree of emphasis on musicianship, live performance, and an ideology of authenticity than pop music. The dominance of rock by white, male musicians has been seen as one of the key factors shaping the themes explored in rock music. Rock music has also embodied and served as the vehicle for cultural and social movements, leading to major sub-cultures including mods and rockers in the UK and the hippie counterculture that spread out from San Francisco in the US in the 1960s. New genres that emerged from this scene included progressive rock, which extended the artistic elements; glam rock, which highlighted showmanship and visual style; and the diverse and enduring subgenre of heavy metal, which emphasized volume, power, and speed. Rock music has also embodied and served as the vehicle for cultural and social movements, leading to major sub-cultures including mods and rockers in the UK and the hippie counterculture that spread out from San Francisco in the US in the 1960s. records for singles "revolutionized the manner in which pop has been disseminated" and helped to move pop music to 'a record/radio/film star system'.[19] Another technological change was the widespread availability of television in the 1950s; with televised performances, "pop stars had to have a visual presence".[19] In the 1960s, the introduction of inexpensive, portable transistor radios meant that teenagers could listen to music outside of the home.[19] Multi-track recording (from the 1960s); and digital sampling (from the 1980s) have also been utilized as methods for the creation and elaboration of pop music.[7] By the early 1980s, the promotion of pop music had been greatly affected by the rise of Music Television channels like MTV, which "favoured those artists such as Michael Jackson and Madonna who had a strong visual appeal". Musically, rock has centered on the electric guitar, usually as part of a rock group with electric bass guitar and drums.