Hi, I am trying to use MusicKit for playing a song or an album. I am using the following code for it: Tested on iPhone 11 Pro, iOS 15.0.1 @MainActor private func play<I: PlayableMusicItem>(_ item: I) async throws { let systemPlayer = SystemMusicPlayer.shared if !systemPlayer.isPreparedToPlay { try await systemPlayer.prepareToPlay() } let queue = systemPlayer.queue try await queue.insert(item, position: .afterCurrentEntry) try await systemPlayer.play() } Before I was using the "oldschool" way using the MusicPlayer framework as follows: @MainActor private func playOldschool(identifier: String) { let systemPlayer = MPMusicPlayerController.systemMusicPlayer if !systemPlayer.isPreparedToPlay { systemPlayer.prepareToPlay() } systemPlayer.setQueue(with: [identifier]) systemPlayer.play() } Both have been tested under the same conditions (permissions, same MusicSubscription), however the one using MusicKit does not seem to work well as try await systemPlayer.prepareToPlay() fails. If I remove the prepareForPlay code, it fails on play() with the same message and error as prepareForPlay. The logs show this: [SDKPlayback] prepareToPlay failed [no target descriptor] Error Domain=MPMusicPlayerControllerErrorDomain Code=1 "(null)" I could not find anything for that error domain and code 1, however prepareToPlay fails even in playOldschool, if I use the async variant of the function. At the moment I am staying with playOldschool, because that actually plays music. I wonder if I should file a radar for this or if there is any additional requirement for MusicKit that I haven't fulfilled causing it to fail. Any help is appreciated!

Hi, I am trying to implement the new view modifier to show a subscription view for AppleMusic. In the #wwdc-10294 (Meet MusicKit for Swift) talk, the use case is very clear and it makes sense. We have an album and if the user wants to play it without an active subscription, we show toggle the binding that makes the view appear. However, using a single boolean removes flexibility so I am trying to figure out the following: I have two buttons: "Play" and "Add", which will either play the album as in the talk or add it to the user library using the Apple MusicAPI. In both cases if there is no subscription, I'd like to show the offer. This means I will have two different MusicSubscriptionOffer.Options configuration, one where the messageIdentifier is .playMusic and the other one .addMusic. This also means that I need to use two viewModifiers .musicSubscriptionOffer resulting in two different bindings (otherwise I assume both view controllers will show when the binding changes?). Worst case is if I show a list of songs and want to have options for .playMusic and .addMusic for each song, then I need a dynamic amount of bindings for the view modifier. Would I need to handle this like list bindings? Ideally I'd like an API that allows me to pass in an enum and provide options based on the enum cases like other SwiftUI API (like .sheet). This would allow for dynamic options and only requiring one single .musicSubscriptionOffer. Is there any solid solution for this at the moment? Any insights would be helpful, thanks!

Hello, Is there any way to get content like what is displayed in the Browse tab of Apple Music using MusicKit or Apple Music API? I checked the contents of the default recommendations in the Apple Music API, and these were my personal recommendations. Is it possible to get common recommendations?

I'm trying to do something that I though would be simple; however, I'm tripping up on something... In brief, I want to get all tracks from a playlist in an AppleMusic authorized user's playlist with the following function:     func getTracksFromAppleMusicPlaylist(playlistId: MusicItemID) async throws -> [Track]? {         print("Fetching AppleMusic Playlists...")         print("Playlist ID: \(playlistId)")         var playlistTracks: [Track]? = []         do {             var playlistRequest = MusicCatalogResourceRequest<Playlist>(matching: \.id, equalTo: playlistId )             playlistRequest.properties = [.tracks]             let playlistResponse = try await playlistRequest.response()             print("Playlist Response: \(playlistResponse)")             let playlistWithTracks = playlistResponse.items             let tracks = playlistWithTracks.flatMap { playlist -> MusicItemCollection<Track> in                 playlist.tracks ?? []             }             playlistTracks = tracks.count > 1 ? tracks : nil         } catch {             print("Error", error)             // handle error         }         return playlistTracks     } This function results in the following error: 2021-08-28 04:25:14.335455+0700 App[90763:6707890] [DataRequesting] Failed to perform MusicDataRequest.Context(   url: https://api.music.apple.com/v1/catalog/us/playlists/p.7XxxsXxXXxX?include=tracks&omit%5Bresource%5D=autos,   currentRetryCounts: [.other: 1] ) with MusicDataRequest.Error(   status: 404,   code: 40400,   title: "Resource Not Found",   detailText: "Resource with requested id was not found",   id: "QMK7GH4U7ITPMUTTBKIOMXXXX",   originalResponse: MusicDataResponse(     data: 159 bytes,     urlResponse: <NSHTTPURLResponse: 0x00000002820c0b60>   ) ). The playlistID being used is a value that has been picked from an existing playlist in the user's library, via a function that uses this code snippet: if let url = URL(string: "https://api.music.apple.com/v1/me/library/playlists?limit=100") {                let dataRequest = MusicDataRequest(urlRequest: URLRequest(url: url)) ... The only thing I can think of is that the playlistId from the above snippet is converted to a string when decoding into a struct, after which it is changed back to a MusicItemID with an init, like MusicItemID(playlistId). Any thoughts? Because I'm at a loss...

Hey everyone, I am creating playlist via the MusicKit API and by default it creates the playlist in the users library and the isPublic attribute is set to false. Is there a way to make the playlist public at the time of creation? (Only way to change isPublic = true at this time seems to be through the Music app right now)

Hello, I am fetching and displaying the .fullalbums for an Artist through the MusicKit api. The JSON response returned has a hasNextBatch: true value, but I am unsure how to fetch and display the next batch. Is this something that can be intelligently retrieved though some MusicKit functionality or does one have to perform another data request to fetch the next batch?

I am trying to display albums, playlists and artist for a Genre. Does anyone know how to do this or if this is not currently supported by the MusicKit and Apple Music API?

Hi! I'm trying out the new MusicKit for Swift (iOS 15 beta). Really liking it! But I'm seeing a weird issue with setting state.playbackRate to anything other than 1.0 when playing. The issue appears to be that the player keeps trying to reset itself to a playbackRate of 1.0. If I set it to 0.5 or 2.0 it still plays the track back at a playbackRate of 1.0. Strangely, about 5% of attempts to change it are actually successful on the ApplicationMusicPlayer. SystemMusicPlayer changes more reliably at maybe a 20% success rate, in my testing. It seems to be happening during/after preparing the track. If I swap out the player's queue while it's preparing to play, I can get it to reliably throw a prepareToPlay error and, upon doing so, it then accepts the playbackRate change to a non-1.0 value. I've tried setting the playbackRate before playing, after playing, and even both! Through observing the playbackRate property I can see that my alterations seem to stick for maybe 0.5 sec as the track loads, then the rate changes back to 1.0 as the song begins to play. I understand it's still in beta so if the answer is simply "wait for release" then that's fine! But I'd like to know if anyone has found a way to reliably alter the playbackRate, as I'm in the middle of scouting a new project that will depend on it. Some detail into my setup: I'm doing this in the WWDC21 project UsingMusicKitToIntegrateWithAppleMusic (which didn't compile out of the box for me until I reworked some of it). My setup is: iPadOS 15 beta 5 (19a5318f) on an iPad Air 2. Xcode v13.0 beta 5 (13A5212g). MacOS Big Sur 11.4. Thanks!

Hi there! I am fetching library songs using the endpoint: https://api.music.apple.com/v1/me/library/songs Here's the code snippet - struct Songs: Decodable { let data: [Song] } public func librarySongs() async throws { let url = URL(string: "https://api.music.apple.com/v1/me/library/songs")   guard let url = url else { return }   let dataRequest = MusicDataRequest(urlRequest: URLRequest(url: url)) do { let dataResponse = try await dataRequest.response() print(dataResponse.debugDescription) let response = try JSONDecoder().decode(Songs.self, from: dataResponse.data) } catch { print("**ERROR**") print(error) print(error.localizedDescription)     } } Trying to decode it using a custom struct gives me the following error. - **ERROR** keyNotFound(CodingKeys(stringValue: "artistName", intValue: nil), Swift.DecodingError.Context(codingPath: [CodingKeys(stringValue: "data", intValue: nil), _JSONKey(stringValue: "Index 20", intValue: 20), CodingKeys(stringValue: "attributes", intValue: nil)], debugDescription: "No value associated with key CodingKeys(stringValue: \"artistName\", intValue: nil) (\"artistName\").", underlyingError: nil)) The data couldn’t be read because it is missing. On digging through the response, I found that one of the songs doesn't have an artist name because it is just a recording of my song I added to the library through GarageBand. In this case, what should be the approach?

Hi 👋 I would like to retrieve Apple Music resources in a specific language. For example, I live in France, but my iPhone language is set to English (UK), unfortunately, it seems like MusicKit is always fetching resources in French (I guess it's the default language associated to my Apple Music account). I know it's possible to specify the language code through the URL (using the l query parameter), but I really would like to use MusicDataRequest as less as possible. Could you please consider adding a way to do this? Regards, Julien

Hi there! I'm working on an Apple Music client and stuck on creating the now playing screen. I've set up all the buttons but struggling to observe the value of playbackTime to update the current playback time label and the progress bar accordingly. Like you can observe the value of playbackRate and playbackState by making the player's state value as an @ObservedObject, how can I observe this value? Thanks in advance!

I'm trying to perform a search for a song by album, artist, & title in the cases when I don't know the song's id (or if there is no isrc match) Reading the docs, it seems that I can only search for one term at a time, but against a list of MusicCatalogSearchable Types So my strategy would be to search for albums by name, then filter the results by artist and title. Two questions here, really: Is the above a good strategy, or is there a better way to do this? For the life of my I cannot figure out from the docs, what to put in place of [MusicCatalogSearchable.Album] in the below. var albumRequest = MusicCatalogSearchRequest(term: album.name, types: [MusicCatalogSearchable.Album]) Xcode doesn't like the above and gives the following error: Type 'MusicCatalogSearchable' has no member 'Album' Sadly, everything I've tried, results in an error. When I look in MusicKit, I see the below, which seems empty to me: @available(iOS 15.0, macOS 12.0, tvOS 15.0, watchOS 8.0, *) public protocol MusicCatalogSearchable : MusicItem { } What am I missing?