diff --git a/12/index_test.html b/12/index_test.html
index b0f71ab..2e8c721 100644
--- a/12/index_test.html
+++ b/12/index_test.html
@@ -40,12 +40,12 @@
         </audio>
       </div>
       <div id="table_content_04">
-        <li id="track_1"> &#8674; No. 2992 &#8674; 0'00''&#8674; by Clara &#8674;</li>
-        <li id="track_2">  &#8674; SupraSignal: An audio piece of the unseen image &#8674; 0'00''&#8674; by Ioana &#8674;</li> 
-        <li id="track_3"> &#8674; I can think with my own head &#8674; 0'00''&#8674; by Tisa &#8674;</li>
-        <li id="track_4"> &#8674; track# &#8674; 0'00''&#8674; by Mika &#8674;</li>
-        <li id="track_5"> &#8674; track## &#8674; 0'00'' &#8674; by Avital & Max &#8674;</li>
-        <li id="track_6"> &#8674; track### &#8674; 0'00''&#8674; by Anna &#8674;</li>
+        <li id="track_4_1"> &#8674; No. 2992 &#8674; 0'00''&#8674; by Clara &#8674;</li>
+        <li id="track_4_2">  &#8674; SupraSignal: An audio piece of the unseen image &#8674; 0'00''&#8674; by Ioana &#8674;</li> 
+        <li id="track_4_3"> &#8674; I can think with my own head &#8674; 0'00''&#8674; by Tisa &#8674;</li>
+        <li id="track_4_4"> &#8674; track# &#8674; 0'00''&#8674; by Mika &#8674;</li>
+        <li id="track_4_5"> &#8674; track## &#8674; 0'00'' &#8674; by Avital & Max &#8674;</li>
+        <li id="track_4_6"> &#8674; track### &#8674; 0'00''&#8674; by Anna &#8674;</li>
       </div> 
 </div>
 </div>