diff --git a/OOP_1A2_Project/bin/.gitignore b/OOP_1A2_Project/bin/.gitignore
index ac72981..6d0c385 100644
--- a/OOP_1A2_Project/bin/.gitignore
+++ b/OOP_1A2_Project/bin/.gitignore
@@ -1,2 +1 @@
-/windowInterface/
 /backend/
diff --git a/OOP_1A2_Project/bin/backend/Board.class b/OOP_1A2_Project/bin/backend/Board.class
index b542ca7..afa6e69 100644
Binary files a/OOP_1A2_Project/bin/backend/Board.class and b/OOP_1A2_Project/bin/backend/Board.class differ
diff --git a/OOP_1A2_Project/bin/windowInterface/move-self.wav b/OOP_1A2_Project/bin/windowInterface/move-self.wav
new file mode 100644
index 0000000..0d3477e
Binary files /dev/null and b/OOP_1A2_Project/bin/windowInterface/move-self.wav differ
diff --git a/OOP_1A2_Project/bin/windowInterface/movesound.wav b/OOP_1A2_Project/bin/windowInterface/movesound.wav
new file mode 100644
index 0000000..0d3477e
Binary files /dev/null and b/OOP_1A2_Project/bin/windowInterface/movesound.wav differ
diff --git a/OOP_1A2_Project/src/backend/Board.java b/OOP_1A2_Project/src/backend/Board.java
index 0c55eae..000669f 100644
--- a/OOP_1A2_Project/src/backend/Board.java
+++ b/OOP_1A2_Project/src/backend/Board.java
@@ -17,6 +17,9 @@ public class Board {
     private Integer selectedX = null;
     private Integer selectedY = null;
     
+    // Add Sound instance
+    private Sound sound;
+    
     public Board(int colNum, int lineNum) {
         this.width = colNum;
         this.height = lineNum;
@@ -25,6 +28,7 @@ public class Board {
         this.pieces = new ArrayList<>();
         this.highlightedPositions = new ArrayList<>();
         this.boardHistory = new ArrayList<>();
+        this.sound = new Sound(); // Initialize Sound instance
     }
 
     public int getWidth() {
@@ -175,7 +179,7 @@ public class Board {
                         if (move.isValid()) {
                             move.execute();
                             
-                            Sound.getInstance().playMoveSound();
+                            sound.playMoveSound(); // Use instance method
                             
                             if (move.putsOpponentInCheckmate()) {
                                 System.out.println("Checkmate! " + (isWhiteTurn ? "Black" : "White") + " wins!");
@@ -234,6 +238,7 @@ public class Board {
         this.height = 8;
         this.pieces = new ArrayList<>();
         this.boardHistory = new ArrayList<>();
+        this.sound = new Sound(); // Initialize Sound instance
         
         for (int y = 0; y < height; y++) {
             if (y >= array.length) {
@@ -314,6 +319,9 @@ public class Board {
         
         // Initialize board history for copy constructor
         this.boardHistory = new ArrayList<>();
+        
+        // Initialize Sound instance (don't copy the sound instance)
+        this.sound = new Sound();
     }
  
     private void clearHighlights() {
@@ -346,8 +354,8 @@ public class Board {
             
             move.execute();
             
-            // Play the move sound
-            Sound.getInstance().playMoveSound();
+            // Play the move sound using instance method
+            sound.playMoveSound();
         }
     }
 
@@ -386,4 +394,11 @@ public class Board {
     public boolean canUndo() {
         return !boardHistory.isEmpty();
     }
+    
+    // Add cleanup method to properly dispose of sound resources
+    public void cleanup() {
+        if (sound != null) {
+            sound.cleanup();
+        }
+    }
 }
\ No newline at end of file
diff --git a/OOP_1A2_Project/src/backend/Sound.java b/OOP_1A2_Project/src/backend/Sound.java
index c854b4c..641017d 100644
--- a/OOP_1A2_Project/src/backend/Sound.java
+++ b/OOP_1A2_Project/src/backend/Sound.java
@@ -1,6 +1,5 @@
 package backend;
 
-
 import javax.sound.sampled.AudioInputStream;
 import javax.sound.sampled.AudioSystem;
 import javax.sound.sampled.Clip;
@@ -9,23 +8,14 @@ import javax.sound.sampled.UnsupportedAudioFileException;
 import java.io.File;
 import java.io.IOException;
 
-
 public class Sound {
-    private static Sound instance;
     private Clip moveSound;
-    private static final String SOUND_FILE_PATH = "movesound.wav";
+    private final String SOUND_FILE_PATH = "movesound.wav";
     
-    private Sound() {
+    public Sound() {
         loadSound();
     }
     
-    public static Sound getInstance() {
-        if (instance == null) {
-            instance = new Sound();
-        }
-        return instance;
-    }
-    
     private void loadSound() {
         try {
             File soundFile = new File(SOUND_FILE_PATH);
@@ -49,7 +39,6 @@ public class Sound {
             moveSound.start();
         }
     }
-
     
     public void cleanup() {
         if (moveSound != null) {