ROCK

Rock music is a form of popular music with a prominent vocal melody, accompanied by guitar, drums, and bass. Many styles of rock music also use keyboard instruments such as organ, piano, mellotron, and synthesizers. Other instruments sometimes utilized in rock include saxophone, harmonica, violin, flute, French horn, banjo, melodica, and timpani.

Rock music has its roots in 1940s and 1950s rock and roll and rockabilly, which evolved from blues, country music and other influences.

A group of musicians specializing in rock music is called a rock band or rock group. Many rock groups consist of a guitarist, lead singer, bass guitarist, and drummer, forming a quartet.

• Rock as a counterculture movement (1963-1974)

Folk rock(Bob Dylan, Neil Young)

Psychedelic rock(Grateful Dead, Big Brother & the Holding Company,The Beatles)

Progressive rock(Pink Floyd, Deep purple)

Soft rock(Elton John, Billy Joel)

• The mid to late 70s

Hard rock & heavy metal( The Rolling Stones,Led Zeppelin,Metallica,Aerosmith,Black Sabbath)

Punk rock(The Ramones, Sex Pistols)

New Wave(Talking Heads, Devo)

Post-punk(Public Image Ltd,Joy Division)

• Rock diversifies in the 1980s

Glam metal(Kiss,Bon Jovi, Guns ´N Roses)

Instrumental rock(Steve Vai, Eric Johnson)

Alternative rock(R.E.M., The Cure)

• Alternative goes mainstream (Early-mid 1990s)

Grunge(Nirvana)

Britpop(Oasis, Radiohead, Blur)

• Success of hybrid genres

Pop punk(Green Day, The Offspring, Blink 182, Sum 41)

Post-grunge(Foo Fighters, Creed)

Nu metal and Rapcore/Rap rock(System of a Down, Limp Biskit, Rage Agains The Machine, Linkin Park, POD)

• Present day (2000-present)

Garage rock revival(The White Stripes, The Hives, The Strokes)

Post-punk revival(The Killers, Franz Ferdinand, Interpol)

Emo(Alexisonfire, My Chemical Romance, Panic! at the Disco)

Metalcore(Atreyu, Avenged Sevenfold)