The fantastic MediaMonkey app that was recently ported over to Windows RT/ Windows 8 has just been updated. MediaMonkey is a great app for managing and tagging your music collection as well as being great for playing back and viewing content.
The latest update adds new zoom modes and lots of bug fixes including album art on mp4. The app is free from the Windows Store and I have set it up on my Surface and it makes a very good alternative to the Xbox Music app.
Added semantic zoom
Fixed several stability issues
Fixed Genre from ID3 tags may not be shown
Fixed Album art from MP4/M4A files may not be shown
Fixed years sorted incorrectly
Fixed scan settings may not be saved
Fixed ‘select all’ command not always accessible
Fixed podcasts and audiobooks nodes are initially empty