diff --git a/HyPlayer.PlayCore.Abstraction/Interfaces/Playback/IPlaybackQualitySelector.cs b/HyPlayer.PlayCore.Abstraction/Interfaces/Playback/IPlaybackQualitySelector.cs
new file mode 100644
index 0000000..c20c167
--- /dev/null
+++ b/HyPlayer.PlayCore.Abstraction/Interfaces/Playback/IPlaybackQualitySelector.cs
@@ -0,0 +1,9 @@
+using HyPlayer.PlayCore.Abstraction.Models.Resources;
+using HyPlayer.PlayCore.Abstraction.Models.SingleItems;
+
+namespace HyPlayer.PlayCore.Abstraction.Interfaces.Playback;
+
+public interface IPlaybackQualitySelector
+{
+    ResourceQualityTag? GetPlaybackQualityTag(SingleSongBase song);
+}
diff --git a/HyPlayer.PlayCore.Abstraction/Interfaces/Playback/IPlaybackResourceResolver.cs b/HyPlayer.PlayCore.Abstraction/Interfaces/Playback/IPlaybackResourceResolver.cs
new file mode 100644
index 0000000..5ab6f28
--- /dev/null
+++ b/HyPlayer.PlayCore.Abstraction/Interfaces/Playback/IPlaybackResourceResolver.cs
@@ -0,0 +1,14 @@
+using HyPlayer.PlayCore.Abstraction.Interfaces.Provider;
+using HyPlayer.PlayCore.Abstraction.Models.Resources;
+using HyPlayer.PlayCore.Abstraction.Models.SingleItems;
+
+namespace HyPlayer.PlayCore.Abstraction.Interfaces.Playback;
+
+public interface IPlaybackResourceResolver
+{
+    Task<MusicResourceBase?> ResolvePlaybackResourceAsync(
+        SingleSongBase song,
+        IMusicResourceProvidable provider,
+        ResourceQualityTag? qualityTag,
+        CancellationToken ctk = default);
+}
diff --git a/HyPlayer.PlayCore.Abstraction/Interfaces/Provider/IProvidableItemCommentPageTokenProvidable.cs b/HyPlayer.PlayCore.Abstraction/Interfaces/Provider/IProvidableItemCommentPageTokenProvidable.cs
new file mode 100644
index 0000000..343e3d5
--- /dev/null
+++ b/HyPlayer.PlayCore.Abstraction/Interfaces/Provider/IProvidableItemCommentPageTokenProvidable.cs
@@ -0,0 +1,11 @@
+using HyPlayer.PlayCore.Abstraction.Models;
+using HyPlayer.PlayCore.Abstraction.Models.SingleItems;
+
+namespace HyPlayer.PlayCore.Abstraction.Interfaces.Provider;
+
+public interface IProvidableItemCommentPageTokenProvidable : IProvider
+{
+    public Task<ProviderPageResult<CommentBase>> GetCommentsPageAsync(string itemId, string typeId, string? pageToken, int count, int sortType = 1, CancellationToken ctk = new());
+
+    public Task<ProviderPageResult<CommentBase>> GetThreadedCommentsPageAsync(string itemId, string typeId, string commentId, string? pageToken, int count, CancellationToken ctk = new());
+}
diff --git a/HyPlayer.PlayCore.Abstraction/Models/ProviderPageResult.cs b/HyPlayer.PlayCore.Abstraction/Models/ProviderPageResult.cs
index 0d2df6c..0138904 100644
--- a/HyPlayer.PlayCore.Abstraction/Models/ProviderPageResult.cs
+++ b/HyPlayer.PlayCore.Abstraction/Models/ProviderPageResult.cs
@@ -21,6 +21,8 @@ public sealed class ProviderPageResult<TItem>
     /// </summary>
     public int? NextOffset { get; set; }
 
+    public string? NextPageToken { get; set; }
+
     /// <summary>
     /// Gets or sets the total item count when the provider exposes one.
     /// </summary>
diff --git a/HyPlayer.PlayCore.Abstraction/Models/Resources/IAudioTrialMetadata.cs b/HyPlayer.PlayCore.Abstraction/Models/Resources/IAudioTrialMetadata.cs
new file mode 100644
index 0000000..166f1bd
--- /dev/null
+++ b/HyPlayer.PlayCore.Abstraction/Models/Resources/IAudioTrialMetadata.cs
@@ -0,0 +1,6 @@
+namespace HyPlayer.PlayCore.Abstraction.Models.Resources;
+
+public interface IAudioTrialMetadata
+{
+    bool IsTrial { get; }
+}
diff --git a/HyPlayer.PlayCore/PlayCoreComponents/PlayCore.PlayerModification.cs b/HyPlayer.PlayCore/PlayCoreComponents/PlayCore.PlayerModification.cs
index 27c57c7..2337623 100644
--- a/HyPlayer.PlayCore/PlayCoreComponents/PlayCore.PlayerModification.cs
+++ b/HyPlayer.PlayCore/PlayCoreComponents/PlayCore.PlayerModification.cs
@@ -1,5 +1,6 @@
 using Depository.Abstraction.Interfaces;
 using HyPlayer.PlayCore.Abstraction.Interfaces.AudioServices;
+using HyPlayer.PlayCore.Abstraction.Interfaces.Playback;
 using HyPlayer.PlayCore.Abstraction.Interfaces.Provider;
 using HyPlayer.PlayCore.Abstraction;
 using HyPlayer.PlayCore.Abstraction.Models.AudioServiceComponents;
@@ -112,7 +113,12 @@ private async Task DisposeCurrentPlayingTicketAsync(bool stopTicket, Cancellatio
         if (provider is null)
             return null;
 
-        return await provider.GetMusicResourceAsync(song, null, ctk).ConfigureAwait(false);
+        var qualityTag = ResolveOptional<IPlaybackQualitySelector>(typeof(IPlaybackQualitySelector))
+            ?.GetPlaybackQualityTag(song);
+        if (ResolveOptional<IPlaybackResourceResolver>(typeof(IPlaybackResourceResolver)) is { } resolver)
+            return await resolver.ResolvePlaybackResourceAsync(song, provider, qualityTag, ctk).ConfigureAwait(false);
+
+        return await provider.GetMusicResourceAsync(song, qualityTag, ctk).ConfigureAwait(false);
     }
 
     private Task PublishPlaybackFailureAsync(SingleSongBase? song, string reason, Exception? exception, CancellationToken ctk)
diff --git a/HyPlayer.PlayCore/PlayListControllers/DefaultPlayListManager.cs b/HyPlayer.PlayCore/PlayListControllers/DefaultPlayListManager.cs
index 7894fe1..a73e539 100644
--- a/HyPlayer.PlayCore/PlayListControllers/DefaultPlayListManager.cs
+++ b/HyPlayer.PlayCore/PlayListControllers/DefaultPlayListManager.cs
@@ -51,10 +51,13 @@ private async Task AppendSongContainerToList(
                 (hasMore, var progressiveList) = await progressiveLoadingContainer.GetProgressiveItemsListAsync(
                     start, progressiveLoadingContainer.MaxProgressiveCount,
                     ctk);
+                if (progressiveList.Count == 0)
+                    break;
+
                 var resultList = progressiveList.OfType<SingleSongBase>().ToList();
                 list.AddRange(resultList);
                 _list.AddRange(resultList);
-                start += progressiveLoadingContainer.MaxProgressiveCount;
+                start += progressiveList.Count;
                 await _notificationHub.PublishNotificationAsync(new InnerPlayListProgressiveAddedNotification
                 {
                     AddedSongs = resultList