Remote for Itunes is nifty application that allows one to control itunes from anywhere in your house. This Application requires a wifi connection to connect and function to allow the user to view your complete itunes library on phone and play the desired tunes. This application allows one to view and play by artists, albums, playlist or genres on a PC or Macintosh computer. It also allows one to change the volume of itunes and can be set up to more then one itunes if music is spread out across different computers.
There no additional software required except for itunes on a compatible computer. I used this throughout the week when I am at home studying, cleaning, or just relaxing on the sofa in another room. After buying the paid version I was very surprised at how responsive and quickly this application is to change songs or volume. It is an instant change with no noticeable lag. The latest update has also included a new widget was is a nice addition to the application. The full version is around $5 and can be downloaded here: https://market.android.com/details?id=hyperfine.hftunes.release&hl=en