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¡¡¡¡Today is a very happy day. I have just watched a rock¨@n¨@roll music. When it became popular in the late 1950s, accompanied by accompanied by a great variety of energetic dance styles.
¡¡¡¡The idea was to ¡° move to the music ¡± Anyway you felt like moving. Popular dance has become more and more free since that time.
¡¡¡¡The music emphasized harmony and repeated melodies; the dancing , like the music, was smooth.
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