diff --git a/MusiLib/MusiLib/App.xaml.cs b/MusiLib/MusiLib/App.xaml.cs
index 5c4bae3..2d76cf3 100644
--- a/MusiLib/MusiLib/App.xaml.cs
+++ b/MusiLib/MusiLib/App.xaml.cs
@@ -5,10 +5,13 @@ namespace MusiLib;
 public partial class App : Application
 {
 
-    public Manager MyManager { get; private set; } = new Manager();
+    public Manager MyManager { get; private set; } = new Manager(new Stub.Stub());
     public App()
     {
-        /*MyManager.chargerDonnees();*/
+        MyManager.chargeDonnees();
+        MyManager.Persistance = new DataContractPersistance.DataContractPers();
+        MyManager.sauvegardeDonnees();
+        
 
         InitializeComponent();
 
diff --git a/MusiLib/MusiLib/DataContractPersistance/DataContractPers.cs b/MusiLib/MusiLib/DataContractPersistance/DataContractPers.cs
new file mode 100644
index 0000000..e5328ac
--- /dev/null
+++ b/MusiLib/MusiLib/DataContractPersistance/DataContractPers.cs
@@ -0,0 +1,72 @@
+using Android;
+using AndroidX.Core.App;
+using AndroidX.Core.Content;
+using Android.OS;
+using Java.Security;
+using MusiLib.Model;
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.Linq;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Threading.Tasks;
+using Android.Content.PM;
+using Android.App;
+
+namespace MusiLib.DataContractPersistance
+{
+    public class DataContractPers : IPersistanceManager
+    {
+        private static readonly int requestCode = 100;
+        public string FilePath { get; set; } = Path.Combine(Android.OS.Environment.DataDirectory.AbsolutePath, "fr.vivienmaxime.musilib");
+        public string FileNameP { get; set; } = "UserFavoris.xml";
+        public string FileNameU { get; set; } = "UserData.xml";
+
+        public (List<Partition>, List<Utilisateur>) chargeDonnees()
+        {
+          
+            var serializerU = new DataContractSerializer(typeof(Utilisateur));
+
+            List<Utilisateur> util = new List<Utilisateur>();
+
+            using (Stream stream = File.OpenRead(Path.Combine(FilePath, FileNameU)))
+            {
+                util = serializerU.ReadObject(stream) as List<Utilisateur>;
+            }
+
+            return (new List<Partition>(), util);
+        }
+
+        public void sauvegardeDonnees(List<Partition> p, List<Utilisateur> u)
+        {
+
+            // Vérifiez si l'application a l'autorisation de lire/écrire des fichiers
+            if (ContextCompat.CheckSelfPermission(Android.App.Application.Context, Manifest.Permission.ReadExternalStorage) == Android.Content.PM.Permission.Denied ||
+                ContextCompat.CheckSelfPermission(Android.App.Application.Context, Manifest.Permission.WriteExternalStorage) == Android.Content.PM.Permission.Denied)
+            {
+                // Demandez à l'utilisateur la permission d'accéder aux fichiers
+                ActivityCompat.RequestPermissions((Android.App.Activity)Android.App.Application.Context,
+                    new string[] { Manifest.Permission.ReadExternalStorage, Manifest.Permission.WriteExternalStorage },
+                    requestCode);
+            }
+
+            var serializerU = new DataContractSerializer(typeof(Utilisateur));
+
+            if (!Directory.Exists(FilePath))
+            {
+                System.Diagnostics.Debug.WriteLine("Directory créé à l'instant");
+                System.Diagnostics.Debug.WriteLine(Directory.GetDirectoryRoot);
+                System.Diagnostics.Debug.WriteLine(FilePath);
+                Directory.CreateDirectory(FilePath);
+            }
+            else
+            {
+                using (Stream stream = File.Create(Path.Combine(FilePath, FileNameU)))
+                {
+                    serializerU.WriteObject(stream, u);
+                }
+            }
+        }
+    }
+}
diff --git a/MusiLib/MusiLib/MauiProgram.cs b/MusiLib/MusiLib/MauiProgram.cs
index e8bf409..5399d33 100644
--- a/MusiLib/MusiLib/MauiProgram.cs
+++ b/MusiLib/MusiLib/MauiProgram.cs
@@ -17,9 +17,8 @@ public static class MauiProgram
 				fonts.AddFont("OpenSans-Semibold.ttf", "OpenSansSemibold");
 			});
 
-		builder.Services.AddSingleton(AudioManager.Current);
-		builder.Services.AddTransient<Accueil>();
+        builder.Services.AddSingleton(AudioManager.Current);
 
-		return builder.Build();
+        return builder.Build();
 	}
 }
diff --git a/MusiLib/MusiLib/Model/IPersistenceManager.cs b/MusiLib/MusiLib/Model/IPersistanceManager.cs
similarity index 87%
rename from MusiLib/MusiLib/Model/IPersistenceManager.cs
rename to MusiLib/MusiLib/Model/IPersistanceManager.cs
index 4948fb7..435d4ac 100644
--- a/MusiLib/MusiLib/Model/IPersistenceManager.cs
+++ b/MusiLib/MusiLib/Model/IPersistanceManager.cs
@@ -6,7 +6,7 @@ using System.Threading.Tasks;
 
 namespace MusiLib.Model
 {
-    public interface IPersistenceManager
+    public interface IPersistanceManager
     {
         (List<Partition>, List<Utilisateur>) chargeDonnees();
 
diff --git a/MusiLib/MusiLib/Model/Manager.cs b/MusiLib/MusiLib/Model/Manager.cs
index 319ffc5..99b388c 100644
--- a/MusiLib/MusiLib/Model/Manager.cs
+++ b/MusiLib/MusiLib/Model/Manager.cs
@@ -10,14 +10,23 @@ namespace MusiLib.Model
 {
     public class Manager
     {
+        public IPersistanceManager Persistance { get; set; }
         public List<Utilisateur> utilisateurs {  get; private set; }
         public List<Partition> partitions {  get; private set; }
 
-        public Manager() {
+        public Manager() 
+        {
             utilisateurs = new List<Utilisateur>(); 
             partitions = new List<Partition>();
         }
 
+        public Manager(IPersistanceManager persistance)
+        {
+            Persistance = persistance;
+            utilisateurs = new List<Utilisateur>();
+            partitions = new List<Partition>();
+        }
+
         public void ajouterUtilisateur(Utilisateur utilisateur)
         {
             utilisateurs.Add(utilisateur);
@@ -28,39 +37,22 @@ namespace MusiLib.Model
             partitions.Add(partition);
         }
 
-
-        /*public class Manager
+        public void chargeDonnees()
         {
-
-            public IPersistenceManager Persistence { get; set; }
-
-            public Manager(IPersistenceManager manager)
-            {
-                utilisateurs = new ReadOnlyCollection<>
-            public List<Partition> partitions { get; private set; }
+            var donnees = Persistance.chargeDonnees();
+            utilisateurs.AddRange(donnees.Item2);
+            partitions.AddRange(donnees.Item1);
         }
 
-        public Manager()
+        public void sauvegardeDonnees()
         {
-            utilisateurs = new List<Utilisateur>();
-            partitions = new List<Partition>();
+            Persistance.sauvegardeDonnees(partitions, utilisateurs);
         }
 
-        public void ajouterUtilisateur(Utilisateur utilisateur)
-        {
-            utilisateurs.Add(utilisateur);
-        }
 
-        public void ajouterPartition(Partition partition)
-        {
-            partitions.Add(partition);
-        }
 
 
-        private void chargeDonnees()
-        {
-            var donnees = Persistence chargeDonnees();
-        }*/
+
 
     }
 }
diff --git a/MusiLib/MusiLib/Platforms/Android/AndroidManifest.xml b/MusiLib/MusiLib/Platforms/Android/AndroidManifest.xml
index e9937ad..c33b7e6 100644
--- a/MusiLib/MusiLib/Platforms/Android/AndroidManifest.xml
+++ b/MusiLib/MusiLib/Platforms/Android/AndroidManifest.xml
@@ -3,4 +3,8 @@
 	<application android:allowBackup="true" android:icon="@mipmap/appicon" android:roundIcon="@mipmap/appicon_round" android:supportsRtl="true"></application>
 	<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
 	<uses-permission android:name="android.permission.INTERNET" />
+	<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
+	<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
+
+
 </manifest>
\ No newline at end of file
diff --git a/MusiLib/MusiLib/Stub/Stub.cs b/MusiLib/MusiLib/Stub/Stub.cs
index 77fc311..e39dd11 100644
--- a/MusiLib/MusiLib/Stub/Stub.cs
+++ b/MusiLib/MusiLib/Stub/Stub.cs
@@ -7,7 +7,7 @@ using System.Threading.Tasks;
 
 namespace MusiLib.Stub
 {
-    public class Stub : IPersistenceManager
+    public class Stub : IPersistanceManager
     {
         public (List<Partition>, List<Utilisateur>) chargeDonnees()
         {
diff --git a/MusiLib/MusiLib/Views/Accueil.xaml b/MusiLib/MusiLib/Views/Accueil.xaml
index af4befe..023ceeb 100644
--- a/MusiLib/MusiLib/Views/Accueil.xaml
+++ b/MusiLib/MusiLib/Views/Accueil.xaml
@@ -85,12 +85,6 @@
                     BackgroundColor="Blue"
                     Clicked="GoToPartitionButton"/>
 
-            <Button Grid.Row="1" Grid.Column="2"
-                    Text="Musique"
-                    WidthRequest="75"
-                    HeightRequest="75"
-                    BackgroundColor="Blue"
-                    Clicked="Button_Clicked"/>
 
         </Grid>
     </ScrollView>
diff --git a/MusiLib/MusiLib/Views/Accueil.xaml.cs b/MusiLib/MusiLib/Views/Accueil.xaml.cs
index 7ede410..f6073fe 100644
--- a/MusiLib/MusiLib/Views/Accueil.xaml.cs
+++ b/MusiLib/MusiLib/Views/Accueil.xaml.cs
@@ -5,13 +5,10 @@ namespace MusiLib.Views;
 public partial class Accueil : ContentPage, IAllowClick
 {
 
-    private readonly IAudioManager audioManager;
 
-    public Accueil(IAudioManager audioManager)
+    public Accueil()
 	{
 		InitializeComponent();
-
-        this.audioManager = audioManager;
     }
 
     private void GoToFavorisButton(object sender, EventArgs e)
@@ -34,17 +31,4 @@ public partial class Accueil : ContentPage, IAllowClick
         IAllowClick.ResumeTap();
     }
 
-    private async void Button_Clicked(object sender, EventArgs e)
-    {
-        /*var player = new Windows.Media.Playback.MediaPlayer();
-        var uri = new Uri($"C:/Users/Utilisateur/Documents/Cours/SAE/SAE_201/ViewsApp/ViewsApp/Resources/Raw/au_clair_de_la_lune.mp3");
-        player.SetUriSource(uri);
-        player.Volume = 0.5;
-        player.Play();*/
-
-        var player = audioManager.CreatePlayer(await FileSystem.OpenAppPackageFileAsync("au_clair_de_la_lune.wav"));
-        player.Volume = 1;
-        player.Play();
-
-    }
 }
\ No newline at end of file
diff --git a/MusiLib/MusiLib/Views/IPlayMusic.cs b/MusiLib/MusiLib/Views/IPlayMusic.cs
new file mode 100644
index 0000000..8582c9e
--- /dev/null
+++ b/MusiLib/MusiLib/Views/IPlayMusic.cs
@@ -0,0 +1,39 @@
+using Plugin.Maui.Audio;
+
+namespace MusiLib.Views
+{
+    public interface IPlayMusic
+    {
+        static AudioPlayer player;
+        static bool isMusicPlaying = false;
+        static bool isMusicBeginning = false;
+
+        public static async void beginMusic()
+        {
+            player = (AudioPlayer)AudioManager.Current.CreatePlayer(await FileSystem.OpenAppPackageFileAsync("au_clair_de_la_lune.wav"));
+            player.Play();
+            isMusicPlaying = true;
+            isMusicBeginning = true;
+        }
+
+        public static void playMusic()
+        {
+            player.Play();
+            isMusicPlaying = true;
+        }
+
+        public static void pauseMusic() 
+        { 
+            player.Pause();
+            isMusicPlaying = false;
+        }
+
+        public static void stopMusic()
+        {
+            player.Stop();
+            isMusicPlaying = false;
+            isMusicBeginning = false;
+        }
+
+    }
+}
diff --git a/MusiLib/MusiLib/Views/Partition.xaml b/MusiLib/MusiLib/Views/Partition.xaml
index ab6106c..b4dfcab 100644
--- a/MusiLib/MusiLib/Views/Partition.xaml
+++ b/MusiLib/MusiLib/Views/Partition.xaml
@@ -55,15 +55,23 @@
                                 HorizontalOptions="Start"
                                 />
                         <Button Grid.Row="5" Grid.Column="0"
-                                Text="E"
+                                Text="Jouer"
                                 WidthRequest="75"
                                 HeightRequest="75"
                                 HorizontalOptions="Start"
+                                Clicked="Play_Music"
                                 />
+                        <Button Grid.Row="5" Grid.Column="1"
+                                Text="Arrêter"
+                                WidthRequest="75"
+                                HeightRequest="75"
+                                HorizontalOptions="Start"
+                                Clicked="Stop_Music"
+                                />
+
                     </Grid>
                 </VerticalStackLayout>
             </HorizontalStackLayout>
-            <Button Text="Musique" Clicked="Button_Clicked"/>
         </VerticalStackLayout>
     </ScrollView>
 </ContentPage>
\ No newline at end of file
diff --git a/MusiLib/MusiLib/Views/Partition.xaml.cs b/MusiLib/MusiLib/Views/Partition.xaml.cs
index 87b6bd5..71b93ea 100644
--- a/MusiLib/MusiLib/Views/Partition.xaml.cs
+++ b/MusiLib/MusiLib/Views/Partition.xaml.cs
@@ -1,6 +1,5 @@
 using Microsoft.Maui.Controls.PlatformConfiguration;
 using MusiLib.Model;
-using Plugin.Maui.Audio;
 
 namespace MusiLib.Views;
 
@@ -8,33 +7,44 @@ namespace MusiLib.Views;
 public partial class Partition : ContentPage
 {
 
-    /*private readonly IAudioManager audioManager;*/
-
-	public Manager MyManager => (App.Current as App).MyManager;
+    public Manager MyManager => (App.Current as App).MyManager;
 
 
 	public Partition()
 	{
 		InitializeComponent();
 
-		listUtil.BindingContext = MyManager;
-
-        /*this.audioManager = audioManager;*/
-
     }
 
-
-    private async void Button_Clicked(object sender, EventArgs e)
+    private void Play_Music(object sender, EventArgs e)
     {
-        /*var player = new Windows.Media.Playback.MediaPlayer();
-        var uri = new Uri($"C:/Users/Utilisateur/Documents/Cours/SAE/SAE_201/ViewsApp/ViewsApp/Resources/Raw/au_clair_de_la_lune.mp3");
-        player.SetUriSource(uri);
-        player.Volume = 0.5;
-        player.Play();*/
-
-        /*var player = audioManager.CreatePlayer(await FileSystem.OpenAppPackageFileAsync("au_clair_de_la_lune.wav"));
-        player.Play();
-        player.Dispose();*/
+        Button button = (Button)sender;
+        if (!IPlayMusic.isMusicBeginning)
+        {
+            IPlayMusic.beginMusic();
+            button.Text = "Pause";
+        }
+        else if(!IPlayMusic.isMusicPlaying)
+        {
+            IPlayMusic.playMusic();
+            button.Text = "Pause";
+        }
+        else
+        {
+            IPlayMusic.pauseMusic();
+            button.Text = "Jouer";
+        }
+        
+    }
+    private void Stop_Music(object sender, EventArgs e)
+    {
+        
+        IPlayMusic.stopMusic();
+    }
 
+    protected override bool OnBackButtonPressed()
+    {
+        IPlayMusic.stopMusic();
+        return base.OnBackButtonPressed();
     }
 }
\ No newline at end of file