El Tunes! is a GStreamer plugin that makes it possible to play music files purchased from Apple’s iTunes Music Store on a Linux system. It is the product of Broken Fractal Ventures, and it’s not yet fully featured. Download package for Ubuntu is available.
For other Linux distributions, a gzipped tarball is available. El Tunes! requires a Linux operating system with GStreamer and a media player that utilizes GStreamer. More information and download options from the projects home page.