1 files changed, 16 insertions, 4 deletions
diff --git a/MediaBrowser.Controller/Entities/Audio/IHasAlbumArtist.cs b/MediaBrowser.Controller/Entities/Audio/IHasAlbumArtist.cs
index a20f05323..56921409a 100644
--- a/MediaBrowser.Controller/Entities/Audio/IHasAlbumArtist.cs
+++ b/MediaBrowser.Controller/Entities/Audio/IHasAlbumArtist.cs
@@ -1,4 +1,6 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
+using System.Linq;
 
 namespace MediaBrowser.Controller.Entities.Audio
 {
@@ -9,10 +11,20 @@ namespace MediaBrowser.Controller.Entities.Audio
 
     public interface IHasArtist
     {
-        bool HasArtist(string name);
-
         List<string> AllArtists { get; }
 
-        List<string> Artists { get; }
+        List<string> Artists { get; set; }
+    }
+
+    public static class HasArtistExtensions
+    {
+        public static bool HasArtist(this IHasArtist hasArtist, string artist)
+        {
+            return hasArtist.Artists.Contains(artist, StringComparer.OrdinalIgnoreCase);
+        }
+        public static bool HasAnyArtist(this IHasArtist hasArtist, string artist)
+        {
+            return hasArtist.AllArtists.Contains(artist, StringComparer.OrdinalIgnoreCase);
+        }
     }
 }