The Lamb Lies Down On Broadway Deluxe Reissue
If I had to pick one singe (double) album that sums up British progressive rock, more than likely it would be Genesis' 1974 epic journey, musical and otherwise, of Rael. For its 50th Anniversary, it's treated to new mixes from the original tapes, including stereo and Dolby Atmos. There's two more CDs of a live version from The Shrine Auditorium, Los Angeles in 1975 (with encores), some extras and a big booklet that includes new interviews from all the participating members of the band.

On the web: