diff --git a/12/player.js b/12/player.js
index 08b9c7e..2eaa40a 100644
--- a/12/player.js
+++ b/12/player.js
@@ -3,14 +3,14 @@ var track = document.querySelector("track_1"),
 track_1.addEventListener('cuechange', function () {
   let cues = track_1.track_1.activeCues;  // array of current cues
   console.log("cuechange", cues, cues[0].text, cues[0].startTime, cues[0].endTime);
-  var d = JSON.parse(cues[0].text);
-  console.log("d",d);
-  track_1_div.innerHTML = d.title;
+  var d_1 = JSON.parse(cues[0].text);
+  console.log("d_1",d_1);
+  track_1_div.innerHTML = d_1.title;
   var old = document.querySelector(".now_playing");
   	if (old) {
       old.classList.remove("now_playing");
     }
-  var playing = document.getElementById(d.title);
+  var playing = document.getElementById(d_1.title);
   playing.classList.add("now_playing");
   console.log("playing",playing);
 });