diff --git a/mp3app/src/main/java/com/example/mp3app/libraryController.java b/mp3app/src/main/java/com/example/mp3app/libraryController.java
index 0e3f729..5ca8682 100644
--- a/mp3app/src/main/java/com/example/mp3app/libraryController.java
+++ b/mp3app/src/main/java/com/example/mp3app/libraryController.java
@@ -65,23 +65,41 @@ protected void toplaylist() throws IOException {
 
     @FXML
     protected void playtrack(){
+          if (mediaPlayer != null && mediaPlayer.getStatus() == MediaPlayer.Status.PLAYING) {
+            mediaPlayer.pause();
+        } else {
+            playCurrentTrack();
+        }
+        
 
     }
     @FXML
     protected void pausetrack(){
+         if (mediaPlayer != null && mediaPlayer.getStatus() == MediaPlayer.Status.PLAYING) {
+            mediaPlayer.pause();
+        }
 
     }
     @FXML
 
     protected void nexttrack(){
+         if (currentTrackIndex < songs.size() - 1) {
+            currentTrackIndex++;
+            playCurrentTrack();
+        }
 
     }
     @FXML
     protected void previoustrack(){
+          if (currentTrackIndex > 0) {
+            currentTrackIndex--;
+            playCurrentTrack();
+        }
 
     }
     @FXML
     protected void shuffletrack(){
+        
 
     }
     @FXML
@@ -90,6 +108,9 @@ protected void shuflleandplay(){
     }
     @FXML
     protected void sorttrack(){
-
-    }
+         public void addSong(String title, String artist, String album) {
+        String songDetails = "Title: " + title + ", Artist: " + artist + ", Album: " + album;
+        songs.add(songDetails);
+    
+   }
 }