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| | MSN Encarta - Popular Music |
 | | The most popular songs in America during the late 18th century, as judged by reported sales of printed music, were written by professional English composers for performance in London parks (known as pleasure gardens) or for performance in English ballad and comic opera. |
 | | A new youth-oriented popular market was defined by a broad category of rock music that included the influential studio experiments of the Beatles, San Francisco psychedelia, guitar heroes such as Jimi Hendrix and Eric Clapton, Southern rock, hard rock, jazz rock, folk rock, and other styles. |
 | | By the early 19th century, Italian opera had also become popular in the United States. |
| encarta.msn.com /encyclopedia_761551614/Popular_Music.html (1519 words) |
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