diff --git a/MusiLib/MusiLib/App.xaml.cs b/MusiLib/MusiLib/App.xaml.cs
index 7c7b857..6e09416 100644
--- a/MusiLib/MusiLib/App.xaml.cs
+++ b/MusiLib/MusiLib/App.xaml.cs
@@ -9,7 +9,7 @@ public partial class App : Application
 
     public string FileNameFU { get; set; } = "favorisUtilisateurs.xml";
     public string FileNameP { get; set; } = "partitions.xml";
-    public string FilePath { get; set; } = Path.Combine(AppDomain.CurrentDomain.BaseDirectory);
+    public string FilePath { get; set; } = FileSystem.AppDataDirectory;
 
     public App()
     {
diff --git a/MusiLib/MusiLib/Resources/Images/fav_btn_off.png b/MusiLib/MusiLib/Resources/Images/fav_btn_off.png
new file mode 100644
index 0000000..cb2c1e6
Binary files /dev/null and b/MusiLib/MusiLib/Resources/Images/fav_btn_off.png differ
diff --git a/MusiLib/MusiLib/Resources/Images/fav_btn_on.png b/MusiLib/MusiLib/Resources/Images/fav_btn_on.png
new file mode 100644
index 0000000..38c48a9
Binary files /dev/null and b/MusiLib/MusiLib/Resources/Images/fav_btn_on.png differ
diff --git a/MusiLib/MusiLib/Views/IPlayMusic.cs b/MusiLib/MusiLib/Views/IPlayMusic.cs
index 4185f5d..045ebe9 100644
--- a/MusiLib/MusiLib/Views/IPlayMusic.cs
+++ b/MusiLib/MusiLib/Views/IPlayMusic.cs
@@ -38,5 +38,10 @@ namespace MusiLib.Views
             }
         }
 
+        public static void reglerTempo(float tempo)
+        {
+            player.Speed = tempo;
+        }
+
     }
 }
diff --git a/MusiLib/MusiLib/Views/PartitionView.xaml b/MusiLib/MusiLib/Views/PartitionView.xaml
index 9a312b6..29643ac 100644
--- a/MusiLib/MusiLib/Views/PartitionView.xaml
+++ b/MusiLib/MusiLib/Views/PartitionView.xaml
@@ -34,50 +34,43 @@
                             <ColumnDefinition Width="125"/>
                             <ColumnDefinition />
                         </Grid.ColumnDefinitions>
-                        <Button Grid.Row="1" Grid.Column="0" 
-                                Text="A"
+                        <Button Grid.Row="1" Grid.Column="0"
+                                Text="Jouer"
                                 WidthRequest="75"
                                 HeightRequest="75"
                                 HorizontalOptions="Start"
+                                Clicked="Play_Music"
+                                x:Name="play_music_button"
                                 />
                         <Button Grid.Row="1" Grid.Column="1"
-                                Text="B"
-                                WidthRequest="75"
-                                HeightRequest="75"
-                                HorizontalOptions="Start"
-                                />
-                        <Button Grid.Row="3" Grid.Column="0" 
-                                Text="C"
+                                Text="Arrêter"
                                 WidthRequest="75"
                                 HeightRequest="75"
                                 HorizontalOptions="Start"
+                                Clicked="Stop_Music"
                                 />
+                        
                         <Border Grid.Row="3" Grid.Column="1"  WidthRequest="75"
                                       HeightRequest="75" HorizontalOptions="Start" Stroke="#6600FF" BackgroundColor="#6600FF">
                             <ImageButton Grid.Row="3" Grid.Column="1" x:Name="favoriButton"
-                                     Source="etoile_vide.png"
                                       WidthRequest="75"
                                       HeightRequest="75"
                                       HorizontalOptions="Start"
                                       Clicked="AddFavoriButton"
                                       />
                         </Border>
-                        <Button Grid.Row="5" Grid.Column="0"
-                                Text="Jouer"
-                                WidthRequest="75"
-                                HeightRequest="75"
-                                HorizontalOptions="Start"
-                                Clicked="Play_Music"
-                                x:Name="play_music_button"
-                                />
-                        <Button Grid.Row="5" Grid.Column="1"
-                                Text="Arrêter"
-                                WidthRequest="75"
-                                HeightRequest="75"
-                                HorizontalOptions="Start"
-                                Clicked="Stop_Music"
-                                />
-                        
+
+                        <Border Grid.Row="4" Grid.Column="0" WidthRequest="200"
+                                HeightRequest="50" HorizontalOptions="Start" Stroke="#6600FF" BackgroundColor="#6600FF"
+                                Margin="0,60,0,0">
+                            <Slider Grid.Row="3" Grid.Column="0" 
+                                    x:Name="tempo_slider"
+                                    Minimum="0" 
+                                    Maximum="6" 
+                                    ValueChanged="TempoSlider" />
+                        </Border>
+
+
                     </Grid>
                 </VerticalStackLayout>
             </HorizontalStackLayout>
diff --git a/MusiLib/MusiLib/Views/PartitionView.xaml.cs b/MusiLib/MusiLib/Views/PartitionView.xaml.cs
index d356da6..c0ce3ca 100644
--- a/MusiLib/MusiLib/Views/PartitionView.xaml.cs
+++ b/MusiLib/MusiLib/Views/PartitionView.xaml.cs
@@ -112,4 +112,10 @@ public partial class PartitionView : ContentPage
             button.Source = "etoile_vide.png";
         }
     }
+
+    private void TempoSlider(object sender, ValueChangedEventArgs e)
+    {
+        float selectedValue = (float)e.NewValue;
+        IPlayMusic.reglerTempo(selectedValue);
+    }
 }