Similarly, the United States' revision of its Copyright Act in 1909 broadened copyright protection to music and further to all works of authorship.

类似地，美国 1909 年对 Copyright Act 的修订，将版权扩展到保护音乐以及所有原创作品。

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Copyright is the term used to characterize the legal recognition of rights to control or benefit from the communication of works of authorship.

版权一词用以指称对著作权者的作品在交流中的控制权和收益权的法律承认。

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The right to create derivative works (works based upon one or more pre-existing works and considered an original work of authorship).

创建派生作品的权利(这样的作品基于一个或多个预先存在的作品，并被认为是原作者的初始作品)。

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"What this case points out is that the copyright statutes were written in an era when works of authorship were only available in tangible form, " said Jonathan Handel, an entertainment attorney at TroyGould.

BBC: US court to rule on ReDigi's MP3 digital music resales