Apply review suggestions

Emby.Server.Implementations/Library/Resolvers/Audio/MusicAlbumResolver.cs

@@ -83,7 +83,7 @@ namespace Emby.Server.Implementations.Library.Resolvers.Audio
         /// </summary>
         /// <param name="path">The path to check.</param>
         /// <param name="directoryService">The directory service.</param>
-        /// <returns><c>true</c> if the provided path points to a music album, <c>false</c> otherwise.</returns>
+        /// <returns><c>true</c> if the provided path points to a music album; otherwise, <c>false</c>.</returns>
         public bool IsMusicAlbum(string path, IDirectoryService directoryService)
         {
             return ContainsMusic(directoryService.GetFileSystemEntries(path), true, directoryService);
@@ -93,7 +93,7 @@ namespace Emby.Server.Implementations.Library.Resolvers.Audio
         /// Determine if the supplied resolve args should be considered a music album.
         /// </summary>
         /// <param name="args">The args.</param>
-        /// <returns><c>true</c> if [is music album] [the specified args], <c>false</c> otherwise.</returns>
+        /// <returns><c>true</c> if [is music album] [the specified args]; otherwise, <c>false</c>.</returns>
         private bool IsMusicAlbum(ItemResolveArgs args)
         {
             if (args.IsDirectory)
@@ -121,7 +121,7 @@ namespace Emby.Server.Implementations.Library.Resolvers.Audio
         /// <summary>
         /// Determine if the supplied list contains what we should consider music.
         /// </summary>
-        /// <returns><c>true</c> if the provided path list contains music, <c>false</c> otherwise.</returns>
+        /// <returns><c>true</c> if the provided path list contains music; otherwise, <c>false</c>.</returns>
         private bool ContainsMusic(
             ICollection<FileSystemMetadata> list,
             bool allowSubfolders,

MediaBrowser.Providers/MediaInfo/AudioFileProber.cs

@@ -1,5 +1,3 @@
-#nullable disable
-
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -120,7 +118,7 @@ namespace MediaBrowser.Providers.MediaInfo
         {
             var file = TagLib.File.Create(audio.Path);
             var tagTypes = file.TagTypesOnDisk;
-            Tag tags = null;
+            Tag tags = new TagLib.Id3v2.Tag();
 
             if (tagTypes.HasFlag(TagTypes.Id3v2))
             {
@@ -151,7 +149,7 @@ namespace MediaBrowser.Providers.MediaInfo
                 tags = file.GetTag(TagTypes.Id3v1);
             }
 
-            if (tags != null)
+            if (tags.IsEmpty)
             {
                 if (audio.SupportsPeople && !audio.LockedFields.Contains(MetadataField.Cast))
                 {