The hardest part of free music is not always creation. It is proving that the music was free to use when a platform, distributor, or third party later asks questions. Content ID systems are useful for rights holders, but they can also create confusion when a public-use track is registered by someone who should not control it.
A public BGM service needs evidence by default. Each track should have a stable page, title, creation date, file links, license explanation, and a unique track ID. This does not magically prevent every false claim, but it gives users a reference point when they need to dispute a claim or explain where the music came from.
Public-domain-style language should be simple. Users need to know what they can do: download, edit, publish, use in videos, play in stores, and share. They also need to know what they cannot do: claim exclusive ownership, register the track into Content ID, or sell it as a private composition that blocks other users.
For AI-generated music, prompt records can also help. They show that the track came from a generation workflow rather than an upload of an existing commercial song. Metadata is not a replacement for legal advice, but it creates operational clarity. A service that keeps records is easier to trust than a site that only offers anonymous downloads.
BGMFREE's public library should treat every free track as both a useful audio file and a license record. The music is the product, but the page around the music is what makes the product safe to use.