diff --git a/Kyoo.Common/Controllers/ILibraryManager.cs b/Kyoo.Common/Controllers/ILibraryManager.cs
index ff239fb1..906c5e32 100644
--- a/Kyoo.Common/Controllers/ILibraryManager.cs
+++ b/Kyoo.Common/Controllers/ILibraryManager.cs
@@ -1,19 +1,18 @@
 using System.Collections.Generic;
-using System.Threading.Tasks;
 using Kyoo.Models;
 
 namespace Kyoo.Controllers
 {
-	// ReSharper disable once PossibleInterfaceMemberAmbiguity
 	public interface ILibraryManager
 	{
 		// Get by slug
-		Library GetLibrary(string librarySlug);
+		Library GetLibrary(string slug);
 		Collection GetCollection(string slug);
 		Show GetShow(string slug);
 		Season GetSeason(string showSlug, long seasonNumber);
 		Episode GetEpisode(string showSlug, long seasonNumber, long episodeNumber);
 		Episode GetMovieEpisode(string movieSlug);
+		Track GetTrack(string slug);
 		Genre GetGenre(string slug);
 		Studio GetStudio(string slug);
 		People GetPeople(string slug);
@@ -24,6 +23,7 @@ namespace Kyoo.Controllers
 		IEnumerable<Show> GetShows();
 		IEnumerable<Season> GetSeasons();
 		IEnumerable<Episode> GetEpisodes();
+		IEnumerable<Track> GetTracks();
 		IEnumerable<Studio> GetStudios();
 		IEnumerable<People> GetPeoples();
 		IEnumerable<Genre> GetGenres();
@@ -38,17 +38,13 @@ namespace Kyoo.Controllers
 		IEnumerable<Studio> SearchStudios(string searchQuery);
 		IEnumerable<People> SearchPeople(string searchQuery);
 		
-		// Other get helpers
-		Show GetShowByPath(string path);
-		IEnumerable<string> GetLibrariesPath();
-		IEnumerable<Episode> GetEpisodes(string showSlug, long seasonNumber);
-
 		//Register values
 		void RegisterLibrary(Library library);
 		void RegisterCollection(Collection collection);
 		void RegisterShow(Show show);
 		void RegisterSeason(Season season);
 		void RegisterEpisode(Episode episode);
+		void RegisterTrack(Track track);
 		void RegisterGenre(Genre genre);
 		void RegisterStudio(Studio studio);
 		void RegisterPeople(People people);
@@ -59,6 +55,7 @@ namespace Kyoo.Controllers
 		void EditShow(Show show, bool resetOld);
 		void EditSeason(Season season, bool resetOld);
 		void EditEpisode(Episode episode, bool resetOld);
+		void EditTrack(Track track, bool resetOld);
 		void EditGenre(Genre genre, bool resetOld);
 		void EditStudio(Studio studio, bool resetOld);
 		void EditPeople(People people, bool resetOld);
@@ -70,6 +67,7 @@ namespace Kyoo.Controllers
 		void DeleteShow(Show show);
 		void DeleteSeason(Season season);
 		void DeleteEpisode(Episode episode);
+		void DeleteTrack(Track track);
 		void DeleteGenre(Genre genre);
 		void DeleteStudio(Studio studio);
 		void DeletePeople(People people);
diff --git a/Kyoo.Common/Controllers/IRepository.cs b/Kyoo.Common/Controllers/IRepository.cs
index 4ff868e6..cddb3805 100644
--- a/Kyoo.Common/Controllers/IRepository.cs
+++ b/Kyoo.Common/Controllers/IRepository.cs
@@ -1,31 +1,35 @@
 using System.Collections.Generic;
+using System.Threading.Tasks;
+using JetBrains.Annotations;
 using Kyoo.Models;
 
 namespace Kyoo.Controllers
 {
 	public interface IRepository<T>
 	{
-		T Get(string slug);
-		IEnumerable<T> Search(string query);
-		IEnumerable<T> GetAll();
-		T Create(T obj);
-		T CreateIfNotExists(T obj);
-		void Edit(T edited, bool resetOld);
-		void Delete(string slug);
+		Task<T> Get(long id);
+		Task<T> Get(string slug);
+		Task<IEnumerable<T>> Search(string query);
+		Task<IEnumerable<T>> GetAll();
+		Task<long> Create([NotNull] T obj);
+		Task<long> CreateIfNotExists([NotNull] T obj);
+		Task Edit([NotNull] T edited, bool resetOld);
+		Task Delete(T obj);
 	}
 	
 	public interface IShowRepository : IRepository<Show> {}
 
 	public interface ISeasonRepository : IRepository<Season>
 	{
-		Season Get(string showSlug, int seasonNumber);
+		Season Get(string showSlug, long seasonNumber);
 	}
 	
 	public interface IEpisodeRepository : IRepository<Episode>
 	{
-		Episode Get(string showSlug, int seasonNumber, int episodeNumber);
+		Episode Get(string showSlug, long seasonNumber, long episodeNumber);
 	}
 	
+	public interface ITrackRepository : IRepository<Track> {}
 	public interface ILibraryRepository : IRepository<Library> {}
 	public interface ICollectionRepository : IRepository<Collection> {}
 	public interface IGenreRepository : IRepository<Genre> {}
diff --git a/Kyoo.Common/Models/Show.cs b/Kyoo.Common/Models/Show.cs
index 4801fb35..684b5305 100644
--- a/Kyoo.Common/Models/Show.cs
+++ b/Kyoo.Common/Models/Show.cs
@@ -36,6 +36,7 @@ namespace Kyoo.Models
 			set => GenreLinks = value?.Select(x => new GenreLink(this, x)).ToList();
 		}
 		[NotMergable] [JsonIgnore] public virtual IEnumerable<GenreLink> GenreLinks { get; set; }
+		[JsonIgnore] public long StudioID { get; set; }
 		public virtual Studio Studio { get; set; }
 		[JsonIgnore] public virtual IEnumerable<PeopleLink> People { get; set; }
 		[JsonIgnore] public virtual IEnumerable<Season> Seasons { get; set; }
diff --git a/Kyoo/Controllers/LibraryManager.cs b/Kyoo/Controllers/LibraryManager.cs
index 393ada95..3eecf500 100644
--- a/Kyoo/Controllers/LibraryManager.cs
+++ b/Kyoo/Controllers/LibraryManager.cs
@@ -1,57 +1,310 @@
-using System;
-using System.Collections;
-using System.Collections.Generic;
-using System.Linq;
-using System.Threading.Tasks;
+using System.Collections.Generic;
 using Kyoo.Models;
-using Kyoo.Models.Exceptions;
-using Microsoft.EntityFrameworkCore;
-using Microsoft.EntityFrameworkCore.ChangeTracking;
 
 namespace Kyoo.Controllers
 {
 	public class LibraryManager : ILibraryManager
 	{
-		private readonly ILibraryRepository _library;
+		private readonly ILibraryRepository _libraries;
+		private readonly ICollectionRepository _collections;
+		private readonly IShowRepository _shows;
+		private readonly ISeasonRepository _seasons;
+		private readonly IEpisodeRepository _episodes;
+		private readonly ITrackRepository _tracks;
+		private readonly IGenreRepository _genres;
+		private readonly IStudioRepository _studios;
+		private readonly IPeopleRepository _people;
 		
-		public LibraryManager(ILibraryRepository library)
+		public LibraryManager(ILibraryRepository libraries,
+			ICollectionRepository collections,
+			IShowRepository shows,
+			ISeasonRepository seasons,
+			IEpisodeRepository episodes,
+			ITrackRepository tracks,
+			IGenreRepository genres,
+			IStudioRepository studios,
+			IPeopleRepository people)
 		{
-			_library = library;
+			_libraries = libraries;
+			_collections = collections;
+			_shows = shows;
+			_seasons = seasons;
+			_episodes = episodes;
+			_tracks = tracks;
+			_genres = genres;
+			_studios = studios;
+			_people = people;
 		}
 
-		public Library Get(string slug)
+		public Library GetLibrary(string slug)
 		{
-			throw new NotImplementedException();
+			return _libraries.Get(slug);
 		}
 
-		public IEnumerable<Library> Search(string query)
+		public Collection GetCollection(string slug)
 		{
-			throw new NotImplementedException();
+			return _collections.Get(slug);
 		}
 
-		public IEnumerable<Library> GetAll()
+		public Show GetShow(string slug)
 		{
-			throw new NotImplementedException();
+			return _shows.Get(slug);
 		}
 
-		public Library Create(Library obj)
+		public Season GetSeason(string showSlug, long seasonNumber)
 		{
-			throw new NotImplementedException();
+			return _seasons.Get(showSlug, seasonNumber);
 		}
 
-		public Library CreateIfNotExists(Library obj)
+		public Episode GetEpisode(string showSlug, long seasonNumber, long episodeNumber)
 		{
-			throw new NotImplementedException();
+			return _episodes.Get(showSlug, seasonNumber, episodeNumber);
 		}
 
-		public void Edit(Library edited, bool resetOld)
+		public Episode GetMovieEpisode(string movieSlug)
 		{
-			throw new NotImplementedException();
+			return _episodes.Get(movieSlug);
 		}
 
-		public void Delete(string slug)
+		public Track GetTrack(string slug)
 		{
-			throw new NotImplementedException();
+			return _tracks.Get(slug);
+		}
+
+		public Genre GetGenre(string slug)
+		{
+			return _genres.Get(slug);
+		}
+
+		public Studio GetStudio(string slug)
+		{
+			return _studios.Get(slug);
+		}
+
+		public People GetPeople(string slug)
+		{
+			return _people.Get(slug);
+		}
+
+		public IEnumerable<Library> GetLibraries()
+		{
+			return _libraries.GetAll();
+		}
+
+		public IEnumerable<Collection> GetCollections()
+		{
+			return _collections.GetAll();
+		}
+
+		public IEnumerable<Show> GetShows()
+		{
+			return _shows.GetAll();
+		}
+
+		public IEnumerable<Season> GetSeasons()
+		{
+			return _seasons.GetAll();
+		}
+
+		public IEnumerable<Episode> GetEpisodes()
+		{
+			return _episodes.GetAll();
+		}
+
+		public IEnumerable<Track> GetTracks()
+		{
+			return _tracks.GetAll();
+		}
+
+		public IEnumerable<Studio> GetStudios()
+		{
+			return _studios.GetAll();
+		}
+
+		public IEnumerable<People> GetPeoples()
+		{
+			return _people.GetAll();
+		}
+
+		public IEnumerable<Genre> GetGenres()
+		{
+			return _genres.GetAll();
+		}
+
+		public IEnumerable<Library> SearchLibraries(string searchQuery)
+		{
+			return _libraries.Search(searchQuery);
+		}
+
+		public IEnumerable<Collection> SearchCollections(string searchQuery)
+		{
+			return _collections.Search(searchQuery);
+		}
+
+		public IEnumerable<Show> SearchShows(string searchQuery)
+		{
+			return _shows.Search(searchQuery);
+		}
+
+		public IEnumerable<Season> SearchSeasons(string searchQuery)
+		{
+			return _seasons.Search(searchQuery);
+		}
+
+		public IEnumerable<Episode> SearchEpisodes(string searchQuery)
+		{
+			return _episodes.Search(searchQuery);
+		}
+
+		public IEnumerable<Genre> SearchGenres(string searchQuery)
+		{
+			return _genres.Search(searchQuery);
+		}
+
+		public IEnumerable<Studio> SearchStudios(string searchQuery)
+		{
+			return _studios.Search(searchQuery);
+		}
+
+		public IEnumerable<People> SearchPeople(string searchQuery)
+		{
+			return _people.Search(searchQuery);
+		}
+		
+		public void RegisterLibrary(Library library)
+		{
+			_libraries.Create(library);
+		}
+
+		public void RegisterCollection(Collection collection)
+		{
+			_collections.Create(collection);
+		}
+
+		public void RegisterShow(Show show)
+		{
+			_shows.Create(show);
+		}
+
+		public void RegisterSeason(Season season)
+		{
+			_seasons.Create(season);
+		}
+
+		public void RegisterEpisode(Episode episode)
+		{
+			_episodes.Create(episode);
+		}
+
+		public void RegisterTrack(Track track)
+		{
+			_tracks.Create(track);
+		}
+
+		public void RegisterGenre(Genre genre)
+		{
+			_genres.Create(genre);
+
+		}
+
+		public void RegisterStudio(Studio studio)
+		{
+			_studios.Create(studio);
+		}
+
+		public void RegisterPeople(People people)
+		{
+			_people.Create(people);
+		}
+
+		public void EditLibrary(Library library, bool resetOld)
+		{
+			_libraries.Edit(library, resetOld);
+		}
+
+		public void EditCollection(Collection collection, bool resetOld)
+		{
+			throw new System.NotImplementedException();
+		}
+
+		public void EditShow(Show show, bool resetOld)
+		{
+			throw new System.NotImplementedException();
+		}
+
+		public void EditSeason(Season season, bool resetOld)
+		{
+			throw new System.NotImplementedException();
+		}
+
+		public void EditEpisode(Episode episode, bool resetOld)
+		{
+			throw new System.NotImplementedException();
+		}
+
+		public void EditTrack(Track track, bool resetOld)
+		{
+			throw new System.NotImplementedException();
+		}
+
+		public void EditGenre(Genre genre, bool resetOld)
+		{
+			throw new System.NotImplementedException();
+		}
+
+		public void EditStudio(Studio studio, bool resetOld)
+		{
+			throw new System.NotImplementedException();
+		}
+
+		public void EditPeople(People people, bool resetOld)
+		{
+			throw new System.NotImplementedException();
+		}
+
+		public void DelteLibrary(Library library)
+		{
+			throw new System.NotImplementedException();
+		}
+
+		public void DeleteCollection(Collection collection)
+		{
+			throw new System.NotImplementedException();
+		}
+
+		public void DeleteShow(Show show)
+		{
+			throw new System.NotImplementedException();
+		}
+
+		public void DeleteSeason(Season season)
+		{
+			throw new System.NotImplementedException();
+		}
+
+		public void DeleteEpisode(Episode episode)
+		{
+			throw new System.NotImplementedException();
+		}
+
+		public void DeleteTrack(Track track)
+		{
+			throw new System.NotImplementedException();
+		}
+
+		public void DeleteGenre(Genre genre)
+		{
+			throw new System.NotImplementedException();
+		}
+
+		public void DeleteStudio(Studio studio)
+		{
+			throw new System.NotImplementedException();
+		}
+
+		public void DeletePeople(People people)
+		{
+			throw new System.NotImplementedException();
 		}
 	}
 }
diff --git a/Kyoo/Controllers/Repositories/ShowRepository.cs b/Kyoo/Controllers/Repositories/ShowRepository.cs
index 51aacad2..2382ba04 100644
--- a/Kyoo/Controllers/Repositories/ShowRepository.cs
+++ b/Kyoo/Controllers/Repositories/ShowRepository.cs
@@ -1,7 +1,9 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using System.Threading.Tasks;
 using Kyoo.Models;
+using Kyoo.Models.Exceptions;
 using Microsoft.EntityFrameworkCore;
 
 namespace Kyoo.Controllers
@@ -9,59 +11,100 @@ namespace Kyoo.Controllers
 	public class ShowRepository : IShowRepository
 	{
 		private readonly DatabaseContext _database;
-		private readonly ILibraryManager _library;
+		private readonly IGenreRepository _genres;
+		private readonly IPeopleRepository _people;
+		private readonly IStudioRepository _studio;
 
-		public ShowRepository(DatabaseContext database, ILibraryManager library)
+		public ShowRepository(DatabaseContext database,
+			IGenreRepository genres,
+			IPeopleRepository people,
+			IStudioRepository studio)
 		{
 			_database = database;
-			_library = library;
+			_genres = genres;
+			_people = people;
+			_studio = studio;
 		}
 		
-		public Show Get(string slug)
+		public Task<Show> Get(long id)
 		{
-			return _database.Shows.FirstOrDefault(x => x.Slug == slug);
+			return Task.FromResult(_database.Shows.FirstOrDefault(x => x.ID == id));
+		}
+		
+		public Task<Show> Get(string slug)
+		{
+			return Task.FromResult(_database.Shows.FirstOrDefault(x => x.Slug == slug));
 		}
 
-		public IEnumerable<Show> Search(string query)
+		public Task<IEnumerable<Show>> Search(string query)
 		{
-			return _database.Shows.FromSqlInterpolated($@"SELECT * FROM Shows WHERE Shows.Title LIKE {$"%{query}%"}
-			                                           OR Shows.Aliases LIKE {$"%{query}%"}").Take(20);
+			return Task.FromResult<IEnumerable<Show>>(
+				_database.Shows.FromSqlInterpolated($@"SELECT * FROM Shows WHERE Shows.Title LIKE {$"%{query}%"}
+			                                           OR Shows.Aliases LIKE {$"%{query}%"}").Take(20).ToList());
 		}
 
-		public IEnumerable<Show> GetAll()
+		public Task<IEnumerable<Show>> GetAll()
 		{
-			return _database.Shows.ToList();
+			return Task.FromResult<IEnumerable<Show>>(_database.Shows.ToList());
 		}
 
-		public Show Create(Show obj)
+		public async Task<long> Create(Show obj)
 		{
 			if (obj == null)
 				throw new ArgumentNullException(nameof(obj));
 
-			obj.Genres = obj.Genres.Select(_library.CreateIfNotExists).ToList();
+			// TODO handle ExternalIDs.
+			obj.StudioID = await _studio.CreateIfNotExists(obj.Studio);
+			obj.GenreLinks = (await Task.WhenAll(obj.GenreLinks.Select(async x =>
+			{
+				x.GenreID = await _genres.CreateIfNotExists(x.Genre);
+				return x;
+			}))).ToList();
+			obj.People = (await Task.WhenAll(obj.People.Select(async x =>
+			{
+				x.PeopleID = await _people.CreateIfNotExists(x.People);
+				return x;
+			}))).ToList();
 			
+			obj.Seasons = null;
+			obj.Episodes = null;
 			
-			_database.Shows.Add(obj);
-			_database.SaveChanges();
-			return obj;
+			await _database.Shows.AddAsync(obj);
+			await _database.SaveChangesAsync();
+			return obj.ID;
 		}
 		
-		public Show CreateIfNotExists(Show obj)
+		public async Task<long> CreateIfNotExists(Show obj)
 		{
 			if (obj == null)
 				throw new ArgumentNullException(nameof(obj));
+
+			Show old = await Get(obj.Slug);
+			if (old != null)
+				return old.ID;
+			return await Create(obj);
+		}
+
+		public async Task Edit(Show edited, bool resetOld)
+		{
+			if (edited == null)
+				throw new ArgumentNullException(nameof(edited));
 			
-			return Get(obj.Slug) ?? Create(obj);
+			Show old = await Get(edited.Slug);
+
+			if (old == null)
+				throw new ItemNotFound($"No show found with the slug {edited.Slug}.");
+			
+			if (resetOld)
+				Utility.Nullify(old);
+			Utility.Merge(old, edited);
+			await _database.SaveChangesAsync();
 		}
 
-		public void Edit(Show edited, bool resetOld)
+		public async Task Delete(Show show)
 		{
-			throw new System.NotImplementedException();
-		}
-
-		public void Delete(string slug)
-		{
-			throw new System.NotImplementedException();
+			_database.Shows.Remove(show);
+			await _database.SaveChangesAsync();
 		}
 	}
 }
\ No newline at end of file