George Harrison's White Album masterpiece 'While My Guitar Gently Weeps' was a career-defining moment for the Beatles guitarist. Gulbransen organ serial numbers. But the band didn't always envision the song as an electric ballad, as evidenced by the acoustic version of it that's been released in advance of the Super Deluxe Edition of the White Album, coming November 9.

Nicknamed 'the Quiet Beatle' at the height of Beatlemania, George Harrison did indeed seem somewhat reserved compared to the other members of the Fab Four. He favored wry wit to Ringo Starr's clowning, and he never indulged in either John Lennon's penchant for controversy or Paul McCartney's crowd-pleasing antics. He preferred sly provocations to larger-than-life bravado. Harrison's measured, considered persona was reflected in his music, particularly his clean, composed lead guitar parts but also in his earliest songs for the Beatles where he didn't seem to waste a line. With the introduction of psychedelics, spirituality, and Indian music in the mid-'60s, George's horizons expanded considerably and he started to come into his own as a musician, releasing a pair of experimental albums on Apple's Zapple offshoot before settling into a songwriting style that spliced Dylanesque introspection with his natural pop grace, while also developing a unique slide guitar technique that owed nothing to the blues. Later Beatles albums hinted at this flowering of talent; The Beatles and Abbey Road contained some of his strongest work, with the latter including the standard 'Something,' a song Frank Sinatra called 'the greatest love song of the past 50 years.' Still, it wasn't until the 1970 release of All Things Must Pass, the post-Beatles triple album that was effectively his solo debut, that the general audience appreciated the depth of his talents.

All Things Must Pass and its smash single 'My Sweet Lord' -- a single that topped the charts around the world -- also cemented Harrison's image as a mystic seeker, a reputation underscored by his 1971 superstar charity event The Concert for Bangladesh and 1973's Living in the Material World, back-to-back hits that established George as a superstar outside of the Beatles. His winning streak hit some rough spots in the mid-'70s, with his last two albums for Apple -- 1974's Dark Horse and 1975's Extra Texture (Read All About It) -- slowing his momentum, leading him to a respectable plateau where he stayed after establishing his Dark Horse label in 1976 with the release of Thirty Three & 1/3. Over the next six years, Harrison recorded fairly steadily and racked up some hits, but he didn't have a full-fledged comeback until 1987's Jeff Lynne-produced Cloud Nine. Thanks to the singles 'Got My Mind Set on You' and 'When We Was Fab,' the album became a Top Ten hit around the world and Harrison followed the record quickly with the supergroup the Traveling Wilburys, whose 1988 album Traveling Wilburys, Vol. 1 grew out of solo sessions for a Harrison B-side. The Wilburys turned out to be George's last hurrah.