The site presents 4K+ tracks in the broader creative archive. The official featured catalog currently documents the public release groups and featured singles — a much smaller, curated surface.
The larger number includes generated, drafted, experimental, unpublished, alternate-version, and archived work. It is scale of process, not a claim that every file is a public release.
What you hear on the Music page is the locked public signal. Everything else stays in the machine until it earns a transmission.
Signal List
Keep the journal signal
Get the next transmission when a new journal drops.