A work is protected by copyright as soon as it is fixed in a tangible medium, i.e. even before it was published.
Under US Copyright Law, copyright attaches as soon as a work is created, whether published or not. Published or unpublished works do not need to be "signed" to fall under copyright protection because the creation of a work already establishes copyright ownership.
Publication is not necessary for a work to be protected by copyrighted. Unpublished works can be submitted for copyright registration and published at a later date.
Yes; protection is automatic as soon as the work is fixed in a tangible medium.
Let people know that you believe your music is protected by copyright: You should always write the international copyright symbol ©, the name of the copyright owner (i.e. you the composer or any publisher to whom the copyright may have been assigned) and the year in which the work was first published (or written if not yet published) in a prominent position on the original and every copy of the work. This will put users on notice of the fact that the work may be protected by copyright
Written works are protected by copyright as soon as they are "fixed" in a tangible format, which is to say written down. Publishing is no longer required for protection.
There is a widely held, but incorrect belief that copyright does not apply when the work has been published on the internet, or that it does not apply if there is no copyright notice on something. There is also a popular myth that you cannot be sued for copyright infringement if you don't make any money on the unauthorized copies you distribute.
With the limited amount of information available there are a number of possible answers... 1) it may never have been formally copyrighted 2) it may have been intended to be "copyright free" (Public Domain) 3) it may have been written/published after 1989, when copyright notices were no longer necessary. 4) it may have been a government subsidized work 5) the copyright may have expired.
The copyright date of each element of this website may be different according to when it was published and whether it was the work of an individual or of an employee of a company.
Under US law, yes. A work is protected by copyright as soon as it is created, and it would be a violation of copyright to copy IN ANY WAY even an unpublished draft work without the consent of the copyright holder.
Not necessarily, but if you are using a nickname or pseudonym for publishing, it would be worthwhile to note that in the copyright registration.
In most cases, for work published after 1923, copyright will expire at the end of the calendar year 70 years after the death of the original author.
Text is not copyright-free unless it was created or published so long ago that the copyright has expired, or if the text does not qualify as having sufficient "creative work of original authorship" to trigger any copyright protection.