求翻译：早期摇滚的音乐来源非常广泛，主要的包括布鲁斯、R&B、和乡村音乐，其它还有福音音乐、传统的流行乐、爵士、以及民间音乐。所有的这些影响加在一起构成了一种简单的以布鲁斯为基础的歌曲结构，它是快速的、适于跳舞的、而且容易让人记住的。是什么意思？

Early rock music wide range of sources, including major blues, R & B, and country music, there are other gospel music, traditional pop, jazz, and folk music. All these effects together to form a simple blues-based song structure, it is fast, suitable for dancing, and easy to remember.

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Early rock and roll music originates extremely widely, main including Bruce, R&B, and country music, other also have the gospel music, the traditional class takes delight, knight, as well as the folk music.All these influences put together constituted one kind simply take Bruce as the foundation

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