diff --git a/MediaBrowser.Api/GamesService.cs b/MediaBrowser.Api/GamesService.cs
index 159a250044..040872fcc8 100644
--- a/MediaBrowser.Api/GamesService.cs
+++ b/MediaBrowser.Api/GamesService.cs
@@ -192,7 +192,7 @@ namespace MediaBrowser.Api
                 _userDataRepository,
                 _dtoService,
                 Logger,
-                request, item => item is Game,
+                request, new[] { typeof(Game) },
                 SimilarItemsHelper.GetSimiliarityScore);
 
             return ToOptimizedSerializedResultUsingCache(result);
diff --git a/MediaBrowser.Api/Library/LibraryService.cs b/MediaBrowser.Api/Library/LibraryService.cs
index 871f5e8a84..097546af6d 100644
--- a/MediaBrowser.Api/Library/LibraryService.cs
+++ b/MediaBrowser.Api/Library/LibraryService.cs
@@ -397,7 +397,7 @@ namespace MediaBrowser.Api.Library
                 });
             }
 
-            if (item is Series || (program != null && program.IsSeries) )
+            if (item is Series || (program != null && program.IsSeries))
             {
                 return new TvShowsService(_userManager, _userDataManager, _libraryManager, _itemRepo, _dtoService, _tvManager)
                 {
@@ -659,87 +659,38 @@ namespace MediaBrowser.Api.Library
         /// <returns>System.Object.</returns>
         public object Get(GetItemCounts request)
         {
-            var filteredItems = GetAllLibraryItems(request.UserId, _userManager, _libraryManager, null, i => i.LocationType != LocationType.Virtual && FilterItem(i, request, request.UserId));
+            var user = string.IsNullOrWhiteSpace(request.UserId) ? null : _userManager.GetUserById(request.UserId);
 
             var counts = new ItemCounts
             {
-                AlbumCount = filteredItems.Count(i => i is MusicAlbum),
-                EpisodeCount = filteredItems.Count(i => i is Episode),
-                GameCount = filteredItems.Count(i => i is Game),
-                GameSystemCount = filteredItems.Count(i => i is GameSystem),
-                MovieCount = filteredItems.Count(i => i is Movie),
-                SeriesCount = filteredItems.Count(i => i is Series),
-                SongCount = filteredItems.Count(i => i is Audio),
-                MusicVideoCount = filteredItems.Count(i => i is MusicVideo),
-                BoxSetCount = filteredItems.Count(i => i is BoxSet),
-                BookCount = filteredItems.Count(i => i is Book),
-
-                UniqueTypes = filteredItems.Select(i => i.GetClientTypeName()).Distinct().ToList()
+                AlbumCount = GetCount(typeof(MusicAlbum), user, request),
+                EpisodeCount = GetCount(typeof(Episode), user, request),
+                GameCount = GetCount(typeof(Game), user, request),
+                GameSystemCount = GetCount(typeof(GameSystem), user, request),
+                MovieCount = GetCount(typeof(Movie), user, request),
+                SeriesCount = GetCount(typeof(Series), user, request),
+                SongCount = GetCount(typeof(Audio), user, request),
+                MusicVideoCount = GetCount(typeof(MusicVideo), user, request),
+                BoxSetCount = GetCount(typeof(BoxSet), user, request),
+                BookCount = GetCount(typeof(Book), user, request)
             };
 
             return ToOptimizedSerializedResultUsingCache(counts);
         }
 
-        private IList<BaseItem> GetAllLibraryItems(string userId, IUserManager userManager, ILibraryManager libraryManager, string parentId, Func<BaseItem, bool> filter)
+        private int GetCount(Type type, User user, GetItemCounts request)
         {
-            if (!string.IsNullOrEmpty(parentId))
-            {
-                var folder = (Folder)libraryManager.GetItemById(new Guid(parentId));
-
-                if (!string.IsNullOrWhiteSpace(userId))
-                {
-                    var user = userManager.GetUserById(userId);
-
-                    if (user == null)
-                    {
-                        throw new ArgumentException("User not found");
-                    }
-
-                    return folder
-                        .GetRecursiveChildren(user, filter)
-                        .ToList();
-                }
-
-                return folder
-                    .GetRecursiveChildren(filter);
-            }
-            if (!string.IsNullOrWhiteSpace(userId))
-            {
-                var user = userManager.GetUserById(userId);
-
-                if (user == null)
-                {
-                    throw new ArgumentException("User not found");
-                }
-
-                return userManager
-                    .GetUserById(userId)
-                    .RootFolder
-                    .GetRecursiveChildren(user, filter)
-                    .ToList();
-            }
-
-            return libraryManager
-                .RootFolder
-                .GetRecursiveChildren(filter);
-        }
-
-        private bool FilterItem(BaseItem item, GetItemCounts request, string userId)
-        {
-            if (!string.IsNullOrWhiteSpace(userId))
-            {
-                if (request.IsFavorite.HasValue)
-                {
-                    var val = request.IsFavorite.Value;
-
-                    if (_userDataManager.GetUserData(userId, item.GetUserDataKey()).IsFavorite != val)
-                    {
-                        return false;
-                    }
-                }
-            }
+            var query = new InternalItemsQuery(user)
+            {
+                IncludeItemTypes = new[] { type.Name },
+                Limit = 0,
+                Recursive = true,
+                ExcludeLocationTypes = new[] { LocationType.Virtual },
+                SourceTypes = new[] { SourceType.Library },
+                IsFavorite = request.IsFavorite
+            };
 
-            return true;
+            return _libraryManager.GetItemsResult(query).TotalRecordCount;
         }
 
         /// <summary>
@@ -980,20 +931,15 @@ namespace MediaBrowser.Api.Library
              ? new string[] { }
              : request.IncludeItemTypes.Split(',');
 
-            Func<BaseItem, bool> filter = i =>
+            var user = !string.IsNullOrWhiteSpace(request.UserId) ? _userManager.GetUserById(request.UserId) : null;
+            
+            var query = new InternalItemsQuery(user)
             {
-                if (includeTypes.Length > 0)
-                {
-                    if (!includeTypes.Contains(i.GetType().Name, StringComparer.OrdinalIgnoreCase))
-                    {
-                        return false;
-                    }
-                }
-
-                return true;
+                IncludeItemTypes = includeTypes,
+                Recursive = true
             };
 
-            IEnumerable<BaseItem> items = GetAllLibraryItems(request.UserId, _userManager, _libraryManager, null, filter);
+            var items = _libraryManager.GetItemList(query);
 
             var lookup = items
                 .ToLookup(i => i.ProductionYear ?? -1)
diff --git a/MediaBrowser.Api/Music/AlbumsService.cs b/MediaBrowser.Api/Music/AlbumsService.cs
index 548598d429..9628ab2319 100644
--- a/MediaBrowser.Api/Music/AlbumsService.cs
+++ b/MediaBrowser.Api/Music/AlbumsService.cs
@@ -52,10 +52,15 @@ namespace MediaBrowser.Api.Music
 
         public object Get(GetSimilarArtists request)
         {
-            var result = GetSimilarItemsResult(
-
-                request, 
+            var dtoOptions = GetDtoOptions(request);
 
+            var result = SimilarItemsHelper.GetSimilarItemsResult(dtoOptions, _userManager,
+                _itemRepo,
+                _libraryManager,
+                _userDataRepository,
+                _dtoService,
+                Logger,
+                request, new[] { typeof(MusicArtist) },
                 SimilarItemsHelper.GetSimiliarityScore);
 
             return ToOptimizedSerializedResultUsingCache(result);
@@ -76,44 +81,11 @@ namespace MediaBrowser.Api.Music
                 _userDataRepository,
                 _dtoService,
                 Logger,
-                request, item => item is MusicAlbum,
+                request, new[] { typeof(MusicAlbum) },
                 GetAlbumSimilarityScore);
 
             return ToOptimizedSerializedResultUsingCache(result);
         }
-
-        private ItemsResult GetSimilarItemsResult(BaseGetSimilarItemsFromItem request, Func<BaseItem, List<PersonInfo>, List<PersonInfo>, BaseItem, int> getSimilarityScore)
-        {
-            var user = !string.IsNullOrWhiteSpace(request.UserId) ? _userManager.GetUserById(request.UserId) : null;
-
-            var item = string.IsNullOrEmpty(request.Id) ?
-                (!string.IsNullOrWhiteSpace(request.UserId) ? user.RootFolder :
-                _libraryManager.RootFolder) : _libraryManager.GetItemById(request.Id);
-
-            var inputItems = _libraryManager.GetArtists(user.RootFolder.GetRecursiveChildren(user, i => i is IHasArtist).OfType<IHasArtist>());
-
-            var list = inputItems.ToList();
-
-            var items = SimilarItemsHelper.GetSimilaritems(item, _libraryManager, list, getSimilarityScore).ToList();
-
-            IEnumerable<BaseItem> returnItems = items;
-
-            if (request.Limit.HasValue)
-            {
-                returnItems = returnItems.Take(request.Limit.Value);
-            }
-
-            var dtoOptions = GetDtoOptions(request);
-
-            var result = new ItemsResult
-            {
-                Items = _dtoService.GetBaseItemDtos(returnItems, dtoOptions, user).ToArray(),
-
-                TotalRecordCount = items.Count
-            };
-
-            return result;
-        }
         
         /// <summary>
         /// Gets the album similarity score.
diff --git a/MediaBrowser.Api/SimilarItemsHelper.cs b/MediaBrowser.Api/SimilarItemsHelper.cs
index d114446eeb..277bba1dd1 100644
--- a/MediaBrowser.Api/SimilarItemsHelper.cs
+++ b/MediaBrowser.Api/SimilarItemsHelper.cs
@@ -54,21 +54,7 @@ namespace MediaBrowser.Api
     /// </summary>
     public static class SimilarItemsHelper
     {
-        /// <summary>
-        /// Gets the similar items.
-        /// </summary>
-        /// <param name="dtoOptions">The dto options.</param>
-        /// <param name="userManager">The user manager.</param>
-        /// <param name="itemRepository">The item repository.</param>
-        /// <param name="libraryManager">The library manager.</param>
-        /// <param name="userDataRepository">The user data repository.</param>
-        /// <param name="dtoService">The dto service.</param>
-        /// <param name="logger">The logger.</param>
-        /// <param name="request">The request.</param>
-        /// <param name="includeInSearch">The include in search.</param>
-        /// <param name="getSimilarityScore">The get similarity score.</param>
-        /// <returns>ItemsResult.</returns>
-        internal static ItemsResult GetSimilarItemsResult(DtoOptions dtoOptions, IUserManager userManager, IItemRepository itemRepository, ILibraryManager libraryManager, IUserDataManager userDataRepository, IDtoService dtoService, ILogger logger, BaseGetSimilarItemsFromItem request, Func<BaseItem, bool> includeInSearch, Func<BaseItem, List<PersonInfo>, List<PersonInfo>, BaseItem, int> getSimilarityScore)
+        internal static ItemsResult GetSimilarItemsResult(DtoOptions dtoOptions, IUserManager userManager, IItemRepository itemRepository, ILibraryManager libraryManager, IUserDataManager userDataRepository, IDtoService dtoService, ILogger logger, BaseGetSimilarItemsFromItem request, Type[] includeTypes, Func<BaseItem, List<PersonInfo>, List<PersonInfo>, BaseItem, int> getSimilarityScore)
         {
             var user = !string.IsNullOrWhiteSpace(request.UserId) ? userManager.GetUserById(request.UserId) : null;
 
@@ -76,11 +62,13 @@ namespace MediaBrowser.Api
                 (!string.IsNullOrWhiteSpace(request.UserId) ? user.RootFolder :
                 libraryManager.RootFolder) : libraryManager.GetItemById(request.Id);
 
-            Func<BaseItem, bool> filter = i => i.Id != item.Id && includeInSearch(i);
+            var query = new InternalItemsQuery(user)
+            {
+                IncludeItemTypes = includeTypes.Select(i => i.Name).ToArray(),
+                Recursive = true
+            };
 
-            var inputItems = user == null
-                                 ? libraryManager.RootFolder.GetRecursiveChildren(filter)
-                                 : user.RootFolder.GetRecursiveChildren(user, filter);
+            var inputItems = libraryManager.GetItemList(query);
 
             var items = GetSimilaritems(item, libraryManager, inputItems, getSimilarityScore)
                 .ToList();
diff --git a/MediaBrowser.Api/TvShowsService.cs b/MediaBrowser.Api/TvShowsService.cs
index 7893ff5bd8..5b5b0a9024 100644
--- a/MediaBrowser.Api/TvShowsService.cs
+++ b/MediaBrowser.Api/TvShowsService.cs
@@ -263,7 +263,7 @@ namespace MediaBrowser.Api
                 _userDataManager,
                 _dtoService,
                 Logger,
-                request, item => item is Series,
+                request, new[] { typeof(Series) },
                 SimilarItemsHelper.GetSimiliarityScore);
 
             return ToOptimizedSerializedResultUsingCache(result);
diff --git a/MediaBrowser.Model/Dto/ItemCounts.cs b/MediaBrowser.Model/Dto/ItemCounts.cs
index c8745ebe38..e80de26b13 100644
--- a/MediaBrowser.Model/Dto/ItemCounts.cs
+++ b/MediaBrowser.Model/Dto/ItemCounts.cs
@@ -62,15 +62,5 @@ namespace MediaBrowser.Model.Dto
         /// </summary>
         /// <value>The book count.</value>
         public int BookCount { get; set; }
-        /// <summary>
-        /// Gets or sets the unique types.
-        /// </summary>
-        /// <value>The unique types.</value>
-        public List<string> UniqueTypes { get; set; }
-     
-        public ItemCounts()
-        {
-            UniqueTypes = new List<string>();
-        }
     }
 }