Hello, I just submitted FB9939377 about this issue, but figured I'd still post on the forums as well. I have been working on bringing song and album rating functionality to my app, using MusicDataRequest from MusicKit for Swift. When I like or dislike a song, or delete the existing rating, those changes are reflected immediately in the Music app across all of my devices. However, when I try to rate or delete an existing rating for an album, the API request is successful, but the changes are not reflected in Music.app on any of my devices. Querying the /v1/me/ratings/albums/[id] endpoint correctly shows the change that was made, but it does not seem to sync the change to any devices, which continue to show whatever the rating state was before the change I made in my app. I ran 3 tests on albums with the following IDs: 1485040020 - Disliked -> Loved Disliked in Music.app /v1/me/ratings/albums/1485040020 shows the value of the rating attribute as “-1” Changed to “Loved” in my app /v1/me/ratings/albums/1485040020 confirms the value of the rating attribute has changed from “-1” to “1” Music.app on the iPod I used to make the change in my app, as well as another iPhone 11 signed into that Apple ID show the original “Disliked” rating for the album. 1485042017 - Loved -> No Rating Liked in Music.app /v1/me/ratings/albums/1485042017 shows the value of the rating attribute as “1” Deleted the rating from my app /v1/me/ratings/albums/1485042017 now 404s, indicating there is no rating for this album. Music.app on the iPod I used to make the change in my app, as well as another iPhone 11 signed into that Apple ID show the original “Loved” rating for the album. 1485037658 - No Rating -> Loved Confirmed /v1/me/ratings/albums/1485037658 returns a 404, as there is no rating for this album “Loved” the album in my app /v1/me/ratings/albums/1485037658 now returns a value of “1” Music.app on the iPod I used to make the change in my app, as well as another iPhone 11 signed into that Apple ID show me the option to either “Love” or “Suggest Less Like This,” indicating there is no existing rating for the album. There are sysdiagnoses attached to the feedback. Please let me know here or in the Feedback if there is any more information I can provide. Thanks! (P.S., I'm requiring iOS 15 for the next version of my app, so I've finally been digging into MusicKit. What a well-designed and useful API! It's been so quick and easy to replace most of my existing URLSession data task code with MusicKit, and MusicDataRequest is such a thoughtful inclusion to be able to interface with the elements of the API not natively in MusicKit, with the added benefit of not needing to deal with tokens anymore. Thanks to the team for all of their continued hard work on it.)

As of the latest builds of both iOS 16.6 and iOS 17.0, playing albums from a users library using ApplicationMusicPlayer plays the songs on that album out of order. This is a dealbreaker for my app, and I’ve had to revert back to the Media Player framework for reliable behavior. If I fetch an album from a MusicLibraryRequest and load it into the queue using the API introduced in 16.4, init(album:startingAt:)., it starts at track 1 but then plays the rest of the tracks in random order. This happens whether skipping tracks or letting them play through. The shuffleMode of the player is .off. The issue does not occur with albums fetched from the Apple Music catalog and loaded using that same API, nor does it occur for MPMediaItemCollections loaded into an applicationQueuePlayer via a queue descriptor. I've submitted this issue as FB12495051 and provided a sysdiagnose. Please let me know if I can provide any other information.

Thanks to the MusicKit team for addressing FB12301908 and FB12301718, but I'm afraid I've discovered even more issues that make MusicLibraryRequest<Album> difficult/impossible to use on macOS. Each of these issues is occurring on Sonoma seed 7 and Xcode 15 beta 8. FB13094022 - MusicLibraryRequest crashes when no filters are applied with error about MPModelGenre The following code crashes the app when run against my library (consisting of Apple Music catalog and self-added music) on macOS or Mac Catalyst: var libraryRequest = MusicLibraryRequest<Album>.init() let albums = try! await libraryRequest.response() The error is as follows: <NSXPCConnection: 0x6000023bc460> connection to service with pid 4331 named com.apple.amp.library.framework: Exception caught during invocation of reply block to message 'performLibraryRequest:withReply:'. Exception: No identifiers for model class: MPModelGenre from source: (null) ( 0 CoreFoundation 0x000000018ebb08c0 __exceptionPreprocess + 176 1 libobjc.A.dylib 0x000000018e6a9eb4 objc_exception_throw + 60 2 Foundation 0x000000018fcf718c -[NSCalendarDate initWithCoder:] + 0 3 MediaPlayer 0x00000001be7f3e20 -[MPBaseEntityTranslator _objectForPropertySet:source:context:] + 392 4 MediaPlayer 0x00000001be7f41f8 -[MPBaseEntityTranslator _objectForRelationshipKey:propertySet:source:context:] + 296 5 MediaPlayer 0x00000001be7f4088 __63-[MPBaseEntityTranslator _objectForPropertySet:source:context:]_block_invoke_2 + 76 6 CoreFoundation 0x000000018eafe6f4 __NSDICTIONARY_IS_CALLING_OUT_TO_A_BLOCK__ + 24 7 CoreFoundation 0x000000018eafe5bc -[__NSDictionaryI enumerateKeysAndObjectsWithOptions:usingBlock:] + 268 8 MediaPlayer 0x00000001be7f3fdc __63-[MPBaseEntityTranslator _objectForPropertySet:source:context:]_block_invoke + 436 9 MediaPlayer 0x00000001be82c5c4 -[MPModelObject initWithIdentifiers:block:] + 184 10 MediaPlayer 0x00000001be7f3d80 -[MPBaseEntityTranslator _objectForPropertySet:source:context:] + 232 11 MediaPlayer 0x00000001be7f30e0 -[MPBaseEntityTranslator objectForPropertySet:source:context:] + 32 12 MediaPlayer 0x00000001be8becbc __47-[MPModeliTunesLibraryRequestOperation execute]_block_invoke + 1032 13 iTunesLibrary 0x00000001c2de3584 iTunesLibrary + 83332 14 CoreFoundation 0x000000018eb1c144 __invoking___ + 148 15 CoreFoundation 0x000000018eb1bfbc -[NSInvocation invoke] + 428 16 Foundation 0x000000018fc06698 __NSXPCCONNECTION_IS_CALLING_OUT_TO_REPLY_BLOCK__ + 16 17 Foundation 0x000000018fc04d18 -[NSXPCConnection _decodeAndInvokeReplyBlockWithEvent:sequence:replyInfo:] + 520 18 Foundation 0x000000018fc04674 __88-[NSXPCConnection _sendInvocation:orArguments:count:methodSignature:selector:withProxy:]_block_invoke_3 + 188 19 libxpc.dylib 0x000000018e788034 _xpc_connection_reply_callout + 116 20 libxpc.dylib 0x000000018e787f2c _xpc_connection_call_reply_async + 80 21 libdispatch.dylib 0x000000010534ebcc _dispatch_client_callout3 + 20 22 libdispatch.dylib 0x0000000105373e0c _dispatch_mach_msg_async_reply_invoke + 400 23 libdispatch.dylib 0x0000000105357ae8 _dispatch_lane_serial_drain + 368 24 libdispatch.dylib 0x0000000105358e00 _dispatch_lane_invoke + 468 25 libdispatch.dylib 0x000000010536877c _dispatch_root_queue_drain_deferred_wlh + 652 26 libdispatch.dylib 0x0000000105367a54 _dispatch_workloop_worker_thread + 444 27 libsystem_pthread.dylib 0x00000001050abd9c _pthread_wqthread + 288 28 libsystem_pthread.dylib 0x00000001050b3ab4 start_wqthread + 8 ) FB13094588 - MusicLibraryRequest filtered by .title, equalTo returns blank The following code returns no results on macOS and MacCatalyst but successfully returns albums on iOS: var albumNameRequest = MusicLibraryRequest<Album>.init() albumNameRequest.filter(matching: \.title, equalTo: "The Window") let nameAlbums = try! await albumNameRequest.response() It returns no results whether I'm providing a string myself, or using the .title property of an Album I've already fetched

I'm experiencing this issue on Sonoma beta 7 and Xcode 15 beta 8: FB13094612 -- MusicLibraryRequests are way slower on macOS than iOS The following code has massive speed differences on macOS than iOS, with macOS taking 3-7 seconds for each request and iOS taking 0.1 seconds or less. let start = Date() var artistAlbumRequest = MusicLibraryRequest<Album>.init() artistAlbumRequest.filter(matching: \.artistName, equalTo: "Ratboys") print("Searching artist Ratboys") let artistAlbums = try! await artistAlbumRequest.response() let name = artistAlbums.items.first!.title let id = artistAlbums.items.first!.id let end = Date() print("It took \(end.timeIntervalSince1970 - start.timeIntervalSince1970) to complete the artist request. \(artistAlbums.items.count) returned") print(artistAlbums.items) let start2 = Date() print("Searching by title: \(name)") var albumNameRequest = MusicLibraryRequest<Album>.init() albumNameRequest.filter(matching: \.title, equalTo: name) let nameAlbum = try! await albumNameRequest.response() let end2 = Date() print("It took \(end2.timeIntervalSince1970 - start2.timeIntervalSince1970) to complete this request") print(nameAlbum.items) print("Searching by ID") let start3 = Date() var albumIDRequest = MusicLibraryRequest<Album>.init() albumIDRequest.filter(matching: \.id, equalTo: id) let idalbum = try! await albumIDRequest.response() let end3 = Date() print("It took \(end3.timeIntervalSince1970 - start3.timeIntervalSince1970) to complete this request") print(idalbum.items) Awaiting the three requests takes 0.085, 0.019, and 0.102 seconds respectively on iOS. However, they take 7.10, 0.1, and 3.3 seconds on macOS. The second one only returns so quickly because of a bug where matching on title returns no results (see FB13094588) This makes it very difficult to provide a good experience when starting music playback, because it takes several seconds between the user selecting an album and it starting.

I'd really like to be able to show List row swipe actions with text and an image, like in Mail.app: In my app, using the .swipeActions modifier on a list row, I have been unable to display both text and an image. It just displays the image. Here is my code: .swipeActions(edge: .leading, allowsFullSwipe: true) { Button { Task { await albumProvider.treatGridAsQueue(album: album) } } label: { Label("Play", systemImage: "play.fill") } Button { AlbumContextHandler.shared.handleTag(albumObject: album, session: nil, presentedSheet: $albumProvider.sheetToPresent) } label: { Label("Tag", systemImage: "tag.fill") { } } I have also tried various initializers on Button, including init(_:systemImage:action:), but none of them have worked. The strange thing is that very occasionally just the top row of a List will display the title and label the first time the swipe actions are displayed. Showing them a second time will just show the icons, as in my screenshot. I've also played around with .buttonStyles but haven't found those to make a difference. Any ideas?