new Artist entity

MediaBrowser.Controller/Entities/Audio/Artist.cs

@@ -12,7 +12,7 @@ namespace MediaBrowser.Controller.Entities.Audio
         /// <returns>System.String.</returns>
         public override string GetUserDataKey()
         {
-            return Name;
+            return "Artist-" + Name;
         }
     }
 }

MediaBrowser.Controller/Entities/Audio/Audio.cs

@@ -113,5 +113,15 @@ namespace MediaBrowser.Controller.Entities.Audio
             return (ProductionYear != null ? ProductionYear.Value.ToString("000-") : "")
                     + (IndexNumber != null ? IndexNumber.Value.ToString("0000 - ") : "") + Name;
         }
+
+        /// <summary>
+        /// Determines whether the specified name has artist.
+        /// </summary>
+        /// <param name="name">The name.</param>
+        /// <returns><c>true</c> if the specified name has artist; otherwise, <c>false</c>.</returns>
+        public bool HasArtist(string name)
+        {
+            return Artists.Contains(name, StringComparer.OrdinalIgnoreCase) || string.Equals(AlbumArtist, name, StringComparison.OrdinalIgnoreCase);
+        }
     }
 }

MediaBrowser.Controller/Entities/Audio/MusicAlbum.cs

@@ -40,7 +40,7 @@ namespace MediaBrowser.Controller.Entities.Audio
         /// <summary>
         /// The unknwon artist
         /// </summary>
-        private static readonly MusicArtist UnknwonArtist = new MusicArtist {Name = "<Unknown>"};
+        private static readonly MusicArtist UnknwonArtist = new MusicArtist { Name = "<Unknown>" };
 
         /// <summary>
         /// Override this to return the folder that should be used to construct a container

MediaBrowser.Controller/Entities/Audio/MusicArtist.cs

@@ -1,6 +1,4 @@
 
-using System.Collections.Generic;
-
 namespace MediaBrowser.Controller.Entities.Audio
 {
     /// <summary>
@@ -8,12 +6,6 @@ namespace MediaBrowser.Controller.Entities.Audio
     /// </summary>
     public class MusicArtist : Folder
     {
-        public Dictionary<string, string> AlbumCovers { get; set; }
 
-        public override void ClearMetaValues()
-        {
-            AlbumCovers = null;
-            base.ClearMetaValues();
-        }
     }
 }