Hi, Boniwell_Graphics,
Your rights would be determined by the iMovie license. To read the iMovie license, open iMovie and
click on iMovie/About iMovie/License. The last paragraph of section 2G provides in part as follows:
"Except as otherwise provided, all Media Content included in the Apple Software may be
used on aroyalty-free basis in your own video projects but may not be distributed on a standalone basis (andaudio Media Content may only be used for your own personal, non-commercial use)."
Sections 2A and 2F also appear to be pertinent.
The above Section 2G quote would appear to preclude commercial use of the iMovie audio content. The
part in the last sentence in parentheses has been added recently. Read through the entire license agreement to see if you can fit into an "except as otherwise provided" category. In general, monetizing another's work of art has been one of the more problematic issues in copyright and license law. However, as always with legal issues, you would need to consult legal counsel
for a definitive opinion.
In addition to the "commercial use" issue, there could be a "personal use" issue for content published on social media or other websites. In other words, it might not be "personal use" if others can access it on the internet. Again, that would be a matter that would require consulting a lawyer for a definitive opinion.
You Tube has a library of songs that it says may be used in your You Tube projects. You might check
out one of those and see if they would be suitable. Some of them aren't bad. Also, sometimes a You Tube copyright flag will contain conditions that are acceptable to you, such as only requiring attribution, or prohibiting
publication outside of the USA.
As for finding the identity of the composer or license holder, the You Tube copyright flag query should identify the holder of the license. Also, you might be able to find some of the iMovie audio content on iTunes, or through an internet search, where you
could get the song information. While attribution always is good, doing so does not necessarily get around copy rights.
-- Rich
