Rock music (English Rock music) - general name for a number of areas of popular music. The word «rock» - (in English the "rock, rock, rock out") - in this case points to the characteristic of these areas rhythmic sensations associated with some form of movement, similar to «roll», «twist», «swing »,« shake », etc. These characteristics of rock music, as the use of Musical instrument, creative self-sufficiency (for rock musicians characteristic performance of his own compositions) are secondary and often misleading. For this reason, is for some styles of music to rock contested.