Los Angeles (E! Online) - All things must pass, including George Harrison's music to iTunes.

On Tuesday, Harrison's solo work finally became available on the world's most popular digital download service, meaning all four former Fabs' post-Beatles oeuvres are now represented.

Nine of Harrison's Rock and Roll Hall of Fame-worthy albums can be purchased, from his landmark 1970 double-disc All Things Must Pass to 2002's posthumously released Brainwashed.

The latter, Grammy-winning collection was released months after Harrison succumbed to cancer in 2001 at age 58.

Harrison's entire catalog has been digitally remastered, and the tracks will be available in DRM-free format for $1.29 each. Some of the albums, including George Harrison, Somewhere in England and Living in the Material World, feature bonus songs.

"It is exciting that George's catalog is finally available for downloading. He had begun the digital remastering of his albums but had no idea how the digital world would change the way we access and listen to music," his widow, Olivia, said in a statement.

Harrison's catalog was the last of the Beatles' to migrate to iTunes; before Tuesday, only his Traveling Wilburys music was on the iPod-populating site.

A year ago, Harrison's and John Lennon's solo work was cleared for release on all major digital distributors except Apple's iTunes-the computer company was embroiled in a legal battle with the Beatles' Apple Corps at the time. With that spat resolved, Paul McCartney and Ringo Starr came aboard earlier this year, followed by Lennon's camp in August.

Now the countdown is on for the Beatles.

Both McCartney and the band's record company, EMI, have confirmed that the entire Beatles catalog is getting digitally remastered for online sale. Sources say the Beatles' tracks could be available on iTunes by the end of the year, although the launch may be pushed back to early 2008.

Meanwhile, the iTunes news comes just two weeks after Martin Scorsese announced he was working on a biopic of Harrison that would feature interviews with his bandmates and some rare material from his archives.