ANSWERS: 2
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Varies with country: http://en.wikipedia.org/wiki/List_of_countries%27_copyright_length A common value is 50 or 70 years after the composer/artists death.
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It depends on many factors, such as when and if the work was published, whether it was created as a work for hire, how many authors are involved, was it created by a person or an entity, etc. The general answer in the U.S. for work created in the last 30 years is the life of the author plus 70 years.
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