The term rock music comes from the ‘rock and roll’ of the 1950s in the Unites States and has its roots in blues, country, jazz and classical musical traditions. An electric guitarist is traditionally a key feature of a rock band, normally accompanied by an electric bass, drums and one or more singers.
Rock bands normally use instrument amplifiers connected to loudspeakers to generate a loud sound and a powerful impact in their concerts. Rock music has been connected with various political and social movements, such as punk in the 1970s, which involved rejecting mainstream culture and protesting against society!