are the portraits from the album cover, one each of Clarke and Bell from the front and side. The backs of these have patient data from Clarke and Bell's MRI scans. Another special edition was released as a promotional item for the music industry: a hardcover book entitled Chorus Software User Manual with hidden compartments inside which hold a copy of the CD and cassette as well as the same 8 cards as the other special edition. 2016 "Erasure 30" 30th anniversary BMG reissue LP Subsequent to their acquisition of Erasure's back catalog, and in anticipation of the band's 30th anniversary, BMG commissioned reissues of all previously released UK editions of Erasure albums up to and including 2007's Light at the End of the World. All titles were pressed and distributed by Play It Again Sam on 180-gram vinyl and shrinkwrapped with a custom anniversary sticker. 2020 deluxe edition A three-disc deluxe edition of the album was released by BMG on 14 February 2020. This consisted of a remastered version of the original 1991 album (disc 1); a collection of seventeen B-sides, remixes, and rare tracks (disc 2); and live recordings of tracks from Chorus performed at the Manchester Apollo in 1992 as part of their Phantasmagorical Entertainment tour. It was packaged as the "hardcover casebound book edition" and branded as one of BMG’s Art of the Album series. Critical reception Upon its release, Andrew Smith of Melody Maker praised Erasure as a duo who produce "the purest, most perfect pop imaginable" and have "often suffered from their stunning simplicity being mistaken for naivety". He described Chorus as an album of "sparkling three-minute wonders" and added that "often the [lyrical] imagery is awkward or clumsy, but allied to those famously transcendent melodies, this is all the more charming". He believed it to be an improvement over Wild! (which "contained so much dead wood") and noted it is "timeless as timeless comes", adding that the songs "could be played on balalaikas and they'd still sound bloody marvellous". Barbara Ellen of NME considered Chorus to "further underline" Erasure as "composers par excellence of exquisitely vivid pop tunes". She noted that on the album Clarke has "pruned down their enormous sound", describing it as "at times basic and workmanlike until Bell's filthy, fruity vocals come in and take us off to fantasy land again". She concluded, "Chorus is, in effect, hyper-emotional, subtly camp,