added music filter

index.html

@@ -11,6 +11,7 @@
       gtag('config', 'G-2JKY37CY96');
     </script>
     <title>SANDTRIS</title>
+    <script src="hammer.min.js"></script>
     <script src="https://cdnjs.cloudflare.com/ajax/libs/p5.js/1.6.0/p5.js"></script>
     <script src="https://cdnjs.cloudflare.com/ajax/libs/p5.js/1.6.0/addons/p5.sound.min.js"></script>
     <link rel="icon" type="image/x-icon" href="favicon.png">
@@ -23,6 +24,7 @@
     </main>
     <script src="sketch.js"></script>
     <center>
+      
       <br/>
       <h1>SANDTRIS</h1>
       <div>
@@ -131,7 +133,7 @@
           </div>
         </dialog> 
 
-        <div id="cnv"></div>
+        <div id="cnv"><div id="p5_loading">LOADING</div></div>
       </div>
     </center>
   </body>