Cardiacs squared, Sing to God essentially takes everything Cardiacs had always been and ramps it up to maximum." He noted that "this is a record drenched in deranged pomposity, from the massive riffs to the expansive keyboards and theatrical vocals. That's without even mentioning the bits that sound something like Sgt Pepper being performed by a Frank Zappa conducted London Symphony Orchestra on speed." Sean Kitching of The Quietus said the album is "the pinnacle of Tim Smith's studio mastery and exhibits elements of the gentler side of his Sea Nymphs project alongside the full-on helter skelter, breakneck velocity more usually associated with the band. It is also, despite the richness of its orchestration and more experimental tendencies, decidedly a pop record–one as quintessentially English sounding as Pink Floyd's seminal Piper at the Gates of Dawn or XTC's classic English Settlement." He also commented that the album marked the point where "Smith's ability to express the music inside his head really began to transcend any sort of identifiable genre and turned Cardiacs into something truly unique." Philip Whitehead of Sputnikmusic said "there is a wide range of styles on display here with the album spinning off in all sorts of directions at unexpected times but it's never 'too much' for the listener, with the softer tracks coming in at perfect times to provide a break after the chaos of Tim Smith let loose, and the closers on each disc do their part perfectly to end proceedings." The album also features material originally written for various other Cardiacs related projects. The track "Nurses Whispering Verses" had been recorded twice before, once on the band's 1981 cassette album Toy World and once on the original cassette release of the band's 1984 album The Seaside (it was removed from the 1995 CD reissue, but reinstated on the 2015 CD and Vinyl reissue in remastered form). "Bell Stinks", "Bell Clinks" and "Angleworm Angel", all written by Poole, were all taken from the repertoire of the thrash band Panixsphere, which featured Smith and Poole alongside Bic Hayes and David Francolini of Levitation. "Billion" is allegedly the first song which Tim Smith ever wrote, resurrected and recorded many years after its composition, whilst "Wireless" features Tim Smith reading from a children's story called "Peril on the Sea" written by Dawn Staple, who would join the band in 2004 as a percussionist and backing singer. Sam Shepherd