Jon Johansen ("DVD Jon") and others have developed PyMusique software for Windows and Linux that by-passes the digital rights management (DRM) system Apple uses for online music sales. Extreme Tech reports:
"The software takes advantage of the iTunes software, which actually applies the iTMS DRM software itself before a song downloaded from Apple's music store can be played by the user. The software prevents the DRM from being applied, essentially permitting the user to copy, share, and otherwise use the downloaded song like a normal MP3 file. Users can also redownload songs that were previously purchased using the utility."
As the story notes: "The PyMusique software appears to go against Apple's terms of service, which requires users access the iTMS code only through approved Apple software."