How can I describe a music that does not have copyright?
I found two words on the internet but I'm not sure if they are correct:
1. Uncopyrighted Music
2. Non-copyrighted Music
Is there a better way to say it?
Thank you very much,
The phrase you're looking for is public domain.
Note that this refers strictly to works which are not under copyright, either because the copyright term has expired or the author has explicitly waived their right to assert copyright.
Works under "permissive licenses" like Creative Commons or open-source software licenses are not "public domain," instead, the author has granted you the consumer the right to use their copyrighted work so long as you adhere to the terms of the license.
Colloquial, catch-all terms for software released under permissive licenses or in the public domain are "open-source software" or "free software." In other fields you would generally use the adjective "free," as in "free music" or "free stock photos." Again, these are colloquial and context-sensitive terms, not legal ones.
More exact terms you might use in a legal context are "music in the public domain," "Creative Commons-licensed music," etc.
"Non copyright" is a possibility
As their Youtube channel states
Non Copyrighted Music For Everyone
another alternative might be
CopyrightFree Network on SoundCloud
A more general definition with its origins in Open Source is
Open collaboration is "any system of innovation or production that relies on goal-oriented yet loosely coordinated participants who interact to create a product (or service) of economic value, which they make available to contributors and noncontributors alike.
Wikipedia uses the word
and points out things in the public domain may still be subject to non-copyright restrictions.