Music for Dogs, specializes in music designed for all dogs.
Music is for dogs with anxiety problems or who are alone for long, Music For Dogs uses the power of music to relax your pet. It is perfect for occasions where fireworks or storms, or dogs suffering from separation.
It has 5 beautiful melodies and up to 10 hours without interruption
Practical and easy to use
There's an HD version now too, if you're into HD apps:
Anecdotally, joining a 400 megabyte matroska video file took 50 seconds on my Viewsonic Gtablet.
Update 12/18 Adds an additional '+' button which creates an item with default artwork. No more browsing through your gallery if you don't want to.
This app is open source and the source is freely available on GitHub.