George Harrison's first six solo albums will be gathered in a new box set titled 'George Harrison: The Apple Years 1968-75,' which is scheduled for release on Sept. 23. The albums will also be available individually.

In addition to including Harrison's two No. 1 albums -- 1970's 'All Things Must Pass' and 1973's 'Living in the Material World' -- the eight-disc box also features the two albums he recorded and released while he was still in the Beatles: 1968's 'Wonderwall Music,' the first solo album released by one of the Fab Four (as well as the first album released on the band's Apple Records), and 1969's 'Electronic Sound.'

Like 'Wonderwall Music,' a movie soundtrack, and John Lennon's earliest solo records, 'Electronic Sound' really wasn't a traditional record, and far from what Beatles fans expected (or even wanted) from the members. The album features experimental music performed on the Moog synthesizer and barely cracked the Top 200 on the U.S. chart.

Those first two albums open 'The Apple Years' somewhat audaciously. But by 1970's 'All Things Must Pass,' originally a triple album but checking in as a double CD on the box, Harrison was making, for the most part, the sort of super-melodic music that made him the Beatles' ace in the hole during the final years. The album's first single, 'My Sweet Lord,' became the first No. 1 song by a solo Beatle.

'George Harrison: The Apple Years 1968-75' also includes 1974's 'Dark Horse' and 1975's 'Extra Texture (Read All About It),' plus a DVD of music videos and a new seven-minute film featuring previously unreleased footage. The box also comes with a book of essays, previously unpublished photos and an introduction by Harrison's son Dhani, who oversaw the digital restoration and remastering of the six albums.

Additionally, 'Wonderwall Music,' 'Living in the Material World,' 'Dark Horse' and 'Extra Texture' are all expanded with previously unreleased and rare tracks; 'All Things Must Pass' includes the five bonus tracks added to the 2001 reissue of the album.