It sounds like you're asking for a review of — likely referring to the period when Apple Music had iOS app installer (IPA) files as exclusive downloads or features (e.g., a special version of the app only available via a certain IPA, or music exclusives requiring a specific app build).
Complete removal of audio and visual advertisements during streaming.
For The National, the partnership provided:
have historically allowed users to download IPA files for backup, they do not bypass the authorization required to run the Apple Music app on unauthorized devices. 3. Artist & Content Exclusivity