Always music had accompanied man in the history. First, were the men of the caverns, who made music with anything that they could find in the nature. Now people can carry their music in a little display called mp3 (normally is an iPot).
The man has evolved through the history and music too, in the beginning was live music, like concerts, the change came when the music was able to record in discs. With this invention, people could listen music in their houses through the turntable. Then these discs evolved into the vinyl discs that were better than the first. After that came a very important change in the music widgets, it was the cassette, a revolutionary invention which allowed carrying music with oneself. After this revolutionary invention appeared the walkman, a device that exceeded the cassette. The minidisc came after, it wasn't a successful device. But came the best revolutionary device until now, the mp3. Then came the mp4, which is the same only that you can watch pictures, videos, movies, etc.
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