MusicCatalogSearchRequest without AppleID/Account on iPhone

Hi, I'm currently working on a little music app PoC. I want to search the albums in the Apple Music Catalog which will done via a MusicCatalogSearchRequest:

let musicAuthorizationStatus = await MusicAuthorization.request()
print(musicAuthorizationStatus)

// Issue a catalog search request for albums matching search term.
var searchRequest = MusicCatalogSearchRequest(term: searchTerm, types: [Album.self])
searchRequest.limit = 5
let searchResponse = try? await searchRequest.response()

print(searchResponse?.albums)

I would expect to get a valid search response but it is nil instead.

This is the console log when no AppleID is configured on my test device:

2021-06-15 23:07:19.083194+0200 ShareFi[1519:727518] [Entitlements] MSVEntitlementUtilities - Process ShareFi PID[1519] - Group: com.apple.private.tcc.allow - Entitlement: kTCCServiceMediaLibrary - Entitled: NO - Error: (null)

.authorized

2021-06-15 23:07:19.130446+0200 ShareFi[1519:727542] [DataRequesting] Failed retrieving MusicKit tokens: Error Domain=ICErrorDomain Code=-8102 "Failed to fetch user token." UserInfo={NSDebugDescription=Failed to fetch user token., NSUnderlyingError=0x2825d8750 {Error Domain=ICErrorDomain Code=-7401 "No active account." UserInfo={NSDebugDescription=No active account.}}}. Throwing .userTokenRequestFailed.

2021-06-15 23:07:19.131133+0200 ShareFi[1519:727542] [DataRequesting] Failed retrieving tokens for MusicDataRequest.Context(url: https://api.music.apple.com/v1/catalog/us/search?term=Earfood&types=albums&omit%5Bresource%5D=autos&limit=5). Error = .userTokenRequestFailed.

When I use a sandbox account the error is still a .userTokenRequestFailed but the message says something like: Privacy terms must be accepted first.

The Apple Music API seems to require a "Developer Token" but no "User Token" for search requests?!

So my questions are:

• Is it possible to make MusicCatalogSearchRequests without having an AppleID configured?
• What resources can a user without a active Apple Music subscription interact with?

Best regards :) Julian