In this essay, I'm going to introduce to the reader a topic not touched a lot because of its complexity and its avoidance by conservative adults. This topic is, of course, Rock Music. During one week, I looked for information in the library and at my house, and from the information I gathered and my one knowledge about the topic, I'm going to lead the reader to a better understanding of Rock n' Roll. I chose to do Rock music because I can identify myself with it. Rock music is very complex. In fact "It's stylistic scope is to broad to be encompassed by any single definition" ("Rock Music", Groliers, p.1). The nearest definition suggests a kind of music that represents and speaks for the teenage society. This music is characterized by using a heavy beat. In this essay, I'm going to divide Rock music into four sections: Rock of the 50?s, of the 60?s, of the 70?s and of the 80?s. Within these sections I'm also going to discuss several sub-topics such as famous composers and groups, and characteristics of the music. The first section of this essay is Rock n' Roll of the 1950's, when Rock n' Roll was born. It emerged from rhythm and blues, a music similar to jazz played by blacks. This kind of music started to attract white teenagers. Disc jockey Alan Freed was the one who introduced this music and later gave it the name of Rock n' Roll. Record companies distributed records played by whites but composed by blacks. Whites were frustrated because there weren't any white artists and they didn't want the blacks to be the stars until Bill Haley appeared with his "Rock Around the Clock". In this decade, Elvis Presley introduced a music that was sexual suggestive and outraged dull adults. In time he changed the style of the music by adopting a country and western style and became a national hero. By the end of this decade and the start of the next, Rock n' Roll started to decline because it was formula ridden and it was too sentimental. Teenage audiences transferred their allegiance to Folk music. In 1963 the renewal of Rock n' Roll came when The Beatles started to play. The Beatles, for some the best rock group ever, were from Liverpool, England. Through the 60's, The Beatles dominated the record industries and with their dominant instrumentation, which included: electric leads, rhythm, and bass guitar, drums and sometimes an electric organ, changed the name of Rock n' Roll to just Rock. During the 1960's many other styles of music arose from Rock like, Motown, Soul music, Jazz-rock , Folk-rock and others. Folk-Rock the most appreciated of this derivations and was first suggested by Bob Dylan. This kind of music brought to folk music a hard beat and amplification; and to Rock, a new poetic style. California was one of the major centers of rock activity and experimentation during the decade. First it was characterize for its surfing music, a very joyful music that reflected the fun people had while surfing. The Beach Boys were the ones who introduced this kind of music. At the end of the century this happy kind of music changed to a more rebellious style that was designated the name of "hippie music". Groups that played this music were Country Joe and The Mamas and The Papas. Along with this hippie ideas popularity of hallucinogenic drugs produced a psychedelic style of music called Acid Rock. By the end of the 60?s the distinctions between Rock n? Roll and Rock were evident. The early instruments- saxophone, piano, amplified guitar, and drums- had been changed to electric guitar and bass, amplified drums and other electronic devices. Not only did the instruments change but so did the ideas behind the music. For example, "to the lyrics of teenage love and adolescent concerns were added social commentary, glorification of drugs and free-association poetry"("Rock Music", Groliers, p.1). Groups like The Beach Boys, Crew Cuts and The Everly Brothers were replaced by more imaginative, non-descriptive names groups like The Who, Jefferson Airplane, Big Brother and Holding Company. The Who, the most famous of these groups, were originally from England and were reknowned because of their bizarre stage performances, they would destroy