Modern copyright derives from the Statute of Anne, 1709.
The copyright is 1956
Both the song and music are so old that copyright law does not cover them.
Both the song and music are so old that copyright law does not cover them.
If it was not protected by copyright when it was created, and not published with notice before 1 March 1989, it is in the public domain and cannot be protected.
A 1924 portrait is no longer in copyright. It is now more than 75 years old and is in the public domain. You do not need permission to reproduce it, and you cannot copyright it.
Yes; there is no minimum age for copyright protection.
Most of them are old enough that copyright term would have expired, but newer translations, adaptations, and illustrations may still be protected.
You can only copyright a song if you are the song's author. You can't copyright someone else's song. Although the author can sell you their copyright.
You can copyright "new material." So in the case of a newly-illustrated old book, or an old poem set to new music, or a photograph of an old painting, the protection would not extend to the portion of the work that was in the public domain.
"Ragged Old Flag" by Johnny Cash was released in 1974 as part of his album of the same name. The song is protected by copyright law, which means that the rights to its reproduction, distribution, and performance are held by the copyright owner, typically the songwriter and their music publisher. For specific copyright details, including the duration and ownership, one would need to refer to the U.S. Copyright Office or relevant music publishing databases.
Copyright in both the play and the film was renewed, so the play will be protected through 2034, and the film through 2036.
Yes; in fact there is a famous copyright case about its appearance in the Men at Work song "Down Under."