Straight answers.

Only if you own or control the required streaming rights. Content ID or an MCN relationship is metadata for review, not automatic permission outside YouTube.

No. Listener accounts cannot access it. Creator, publisher, label, and admin roles receive scoped access to their own catalog.

After required metadata, rights, territories, dates, and evidence are complete and the release is approved.

The system records qualified listening events. Actual rates and payout terms must be published contractually before real earnings are credited.

Only a rights holder-approved release can be saved offline. The web app includes offline support, while dependable background playback is best delivered through the planned mobile app.