diff --git a/MusiLib/MusiLib/DataContractPersistance/DataToPersist.cs b/MusiLib/MusiLib/DataContractPersistance/DataToPersist.cs
new file mode 100644
index 0000000..89bb7f6
--- /dev/null
+++ b/MusiLib/MusiLib/DataContractPersistance/DataToPersist.cs
@@ -0,0 +1,15 @@
+using MusiLib.Model;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MusiLib.DataContractPersistance
+{
+    public class DataToPersist
+    {
+        public List<Utilisateur> utilisateurs = new List<Utilisateur>();
+        public List<Partition> partitions = new List<Partition>();
+    }
+}
diff --git a/MusiLib/MusiLib/Model/Metronome.cs b/MusiLib/MusiLib/Model/Metronome.cs
index 314b2e1..3cdc267 100644
--- a/MusiLib/MusiLib/Model/Metronome.cs
+++ b/MusiLib/MusiLib/Model/Metronome.cs
@@ -1,32 +1,47 @@
-using System;
+using Plugin.Maui.Audio;
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 
-namespace App.Models
+namespace MusiLib.Model
 {
-    class Metronome
+    public class Metronome
     {
-        public void lancer()
+        static AudioPlayer player;
+        static bool isMusicPlaying = false;
+        static bool isMusicBeginning = false;
+
+        public static async void beginMusic()
         {
-            //lancer la partition
+            player = (AudioPlayer)AudioManager.Current.CreatePlayer(await FileSystem.OpenAppPackageFileAsync("au_clair_de_la_lune.wav"));
+            player.Play();
+            isMusicPlaying = true;
+            isMusicBeginning = true;
         }
 
-        public void arreter()
+        public static void playMusic()
         {
-            //mettre en pause la partition
+            player.Play();
+            isMusicPlaying = true;
         }
 
-        public void reinitialiser()
+        public static void pauseMusic()
         {
-            //remettre la partition à 0
+            player.Pause();
+            isMusicPlaying = false;
         }
-
-        public void regler()
+        public static void stopMusic()
         {
-            //régler la partition (volume, tempo ...)
+            if (isMusicBeginning)
+            {
+                player.Stop();
+                isMusicPlaying = false;
+                isMusicBeginning = false;
+            }
         }
-
     }
+
 }
+
diff --git a/MusiLib/MusiLib/Views/IPlayMusic.cs b/MusiLib/MusiLib/Views/IPlayMusic.cs
index bf5b386..9651b90 100644
--- a/MusiLib/MusiLib/Views/IPlayMusic.cs
+++ b/MusiLib/MusiLib/Views/IPlayMusic.cs
@@ -30,12 +30,12 @@ namespace MusiLib.Views
 
         public static void stopMusic()
         {
-            if(isMusicPlaying) 
+            if(isMusicBeginning) 
             {
                 player.Stop();
+                isMusicPlaying = false;
+                isMusicBeginning = false;
             }
-            isMusicPlaying = false;
-            isMusicBeginning = false;
         }
 
     }
diff --git a/MusiLib/MusiLib/Views/Partition.xaml b/MusiLib/MusiLib/Views/Partition.xaml
index b4dfcab..b532870 100644
--- a/MusiLib/MusiLib/Views/Partition.xaml
+++ b/MusiLib/MusiLib/Views/Partition.xaml
@@ -60,6 +60,7 @@
                                 HeightRequest="75"
                                 HorizontalOptions="Start"
                                 Clicked="Play_Music"
+                                x:Name="play_music_button"
                                 />
                         <Button Grid.Row="5" Grid.Column="1"
                                 Text="Arrêter"
diff --git a/MusiLib/MusiLib/Views/Partition.xaml.cs b/MusiLib/MusiLib/Views/Partition.xaml.cs
index 71b93ea..03f0faf 100644
--- a/MusiLib/MusiLib/Views/Partition.xaml.cs
+++ b/MusiLib/MusiLib/Views/Partition.xaml.cs
@@ -1,3 +1,4 @@
+using M.Models;
 using Microsoft.Maui.Controls.PlatformConfiguration;
 using MusiLib.Model;
 
@@ -38,8 +39,9 @@ public partial class Partition : ContentPage
     }
     private void Stop_Music(object sender, EventArgs e)
     {
-        
         IPlayMusic.stopMusic();
+        Button button = (Button)FindByName("play_music_button");
+        button.Text = "Jouer";
     }
 
     protected override bool OnBackButtonPressed()