play intro song after scene load to prevent choppy

src/components/intro-song.js

@@ -0,0 +1,9 @@
+AFRAME.registerComponent('intro-song', {
+  multiple: true,
+
+  play: function () {
+    const audio = document.getElementById('introSong');
+    audio.volume = 0.5;
+    audio.play();
+  }
+});