Rock and roll influenced daily life, fashion, attitudes and language in a way few other social developments have equalled. As the original generations of rock and roll fans matured, the music became an accepted and deeply interwoven thread in popular culture. Beginning in the early 1950s, rock songs and acts began to be used in a few television commercials; within a decade this practice became widespread, and rock music also featured in film and television program soundtracks.
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They mad American Idiot to showcase Greendays music and because they wanted to create a new type of musical that expresses many different things
The identified part represents an open string!:)
A model is a three-dimensional of a person/thing or of a proposed structure.
A mock up is a model or replica of a machine or structure, used for instructional or experimental purposes.
A prototype is a first or preliminary version of a device or vehicle from which other forms are developed.
