diff --git a/App/eden.js b/App/eden.js
index ebc4c279..8089d001 100644
--- a/App/eden.js
+++ b/App/eden.js
@@ -96,7 +96,7 @@ worldData.push({
     },
     sounds: {
       music: {
-        intro: '.mp3',
+        intro: ['.m4a', '.mp3'],
         birds: '.mp3',
         credits: '.mp3',
         map: '.mp3',
diff --git a/Types/Assets.js b/Types/Assets.js
index e957c911..6baebe8d 100644
--- a/Types/Assets.js
+++ b/Types/Assets.js
@@ -16,6 +16,15 @@ function Assets(spec) {
 
   if (callbacks.progress) callbacks.progress(0, loadTotal)
 
+  function isSupported(filename) {
+    let ext = getExtension(filename)
+    return Howler.codecs(ext)
+  }
+
+  function getExtension(file) {
+    return file.split('.').pop()
+  }
+
   function loadAsset(object, folders, file, key, assetSpec = {}) {
     // console.log(`Loading asset '${file}' from folders `, folders)
 
@@ -78,10 +87,18 @@ function Assets(spec) {
 
   function load(object, folders = []) {
     _.each(object, (v, i) => {
+      if (_.isString(v)) {
+        loadAsset(object, folders, v, i)
+      } else
+      if (_.isArray(v)) {
+        // find the first filetype we support and load that
+        let ext = v.find((v) => isSupported(v))
+        loadAsset(object, folders, ext, i)
+      } else
       if (_.isObject(v)) {
         if (_.has(v, 'src')) loadAsset(object, folders, v.src, i, v)
         else load(v, [...folders, i])
-      } else if (_.isString(v)) loadAsset(object, folders, v, i)
+      } 
     })
   }