permalink issue

_config.yml

@@ -55,7 +55,7 @@ collections:
 
 # defaults
 # timezone: Europe/Stockholm
-# permalink: /:categories/:title/ 
+permalink: /:categories/:title/ 
 # defaults:
 #   - 
 #     scope:

_layouts/music.html

@@ -13,7 +13,7 @@ layout: default
     <a href="{{ site.baseurl }}{{ page.next_in_category.url }}" title="Next Track"><img
         src="{{ site.baseurl }}/assets/img/icons/skipfwd.png" title="Next Track" /></a>{% endif %}
   </h1>
-  <a href="{{ site.baseurl }}/music/index.html">Back to Index</a>
+  <a href="{{ site.baseurl }}/music/">Back to Index</a>
 </div>
 
 <div id="lyrics">