Rock - Pioneers, Genres, Legends: For lexicographers and legislators alike, the purpose of definition is to grasp a meaning, to hold it in place, so that people can use a word correctly—for example, to assign a track to its proper radio outlet (rock, pop, country, jazz). The trouble is that the term rock describes an evolving musical practice informed by a variety of nonmusical arguments ...
Rock became the most inclusive of musical genres; if other kinds of music—e.g., classical, jazz, easy listening, country, folk, etc.—are marketed as minority interests, rock defines the musical mainstream. Rock's origins lie in rock and roll, a new form of American popular music in the 1950s that was personified early on by Elvis Presley.
Rock, in geology, naturally occurring and coherent aggregate of one or more minerals. Such aggregates constitute the basic unit of which the solid Earth is composed and typically form recognizable and mappable volumes. The three major classes of rock are igneous, sedimentary, and metamorphic rock.
Rock music is a form of popular music that emerged in the 1950s and can be defined as “a form of music with a strong beat”—it is difficult to be much more precise. It is also called rock and roll. Rock originated in the United States in the 1950s and then spread to other English-speaking countries and across Europe in the ’60s; by the ’90s its impact was evident globally.
Rock - 80s, 90s, Pop: The music industry was rescued from its economic crisis by the development in the 1980s of a new technology, digital recording. Vinyl records were replaced by the compact disc (CD), a technological revolution that immediately had a conservative effect. By this point the most affluent record buyers had grown up on rock; they were encouraged to replace their records, to ...