Most brand social teams have absorbed one rule about music: use the platform’s own library and you are fine. It is roughly true, and the part that is missing causes more exposure than any other single misunderstanding we see.
The libraries are licensed per platform. TikTok’s Commercial Music Library covers use on TikTok. The Meta Sound Collection covers Instagram and Facebook. The YouTube Audio Library covers YouTube. None of them covers the others.
Why this bites brands specifically
Because brands repurpose. A campaign is shot once and cut for every channel — the same fifteen seconds goes to TikTok, Reels, Shorts, a Pin, and a post on X. That workflow is efficient, expected, and it is precisely what breaks the license.
An individual posting to one account rarely encounters this. A brand running seven channels encounters it on almost every campaign.
Where the exposure sits
Statutory damages in the United States run to $150,000 per work for willful infringement. The relevant unit is the work, not the campaign — so one track repurposed across five channels is not one problem.
The platform-by-platform position
| Platform | Library | Cleared for |
|---|---|---|
| YouTube | YouTube Audio Library | YouTube only |
| TikTok | Commercial Music Library | TikTok only |
| Meta Sound Collection | Instagram and Facebook | |
| Meta Sound Collection | Instagram and Facebook | |
| X | — | No commercial library |
| LinkedIn audio library | LinkedIn only | |
| Pinterest licensed music | Pinterest only |
Two entries in that table deserve more than a row.
X has no commercial library at all
There is no equivalent of the Commercial Music Library on X. Cross-posting a TikTok or a Reel to X therefore carries whatever license the original had — which is to say, one that did not extend to X. Of every routine workflow we audit, this is the one most likely to produce findings.
The libraries move
Availability inside an app is a snapshot, not a permission. Tracks enter and leave these libraries as the underlying deals change. A track that was genuinely cleared when a post went up may not be in the library today — and, less intuitively, a track that is in the library today may not have been when the post was published.
This is why “we only use the in-app library” is a policy, not a defense. The defense is the record: which track, which library, which date, which platform.
What to keep
The pairing that survives scrutiny is the post URL alongside the license basis at the time of posting. Three fields are usually enough:
- The post URL and its publication date.
- The track, ideally with its ISRC rather than the display name — copyrighted recordings are routinely uploaded under unrelated titles.
- The license relied on: which library, or which sync license reference.
Brands that keep this find audits cheap and demand letters manageable. Brands that do not are reconstructing history under time pressure, usually with a rights holder’s deadline running.
The awkward part
None of this is retroactive. If a repurposed video has been live for three years, the license position at the time of publication is what matters, and no amount of tidying the workflow now changes it. That is the case for looking backwards at least once — not because the past is fixable, but because you cannot decide what to do about exposure you have not measured.
