[5] A member of the band said that the pre-production, writing and arranging of Meliora took a long time, not allowing for the luxury of recording any non-album songs with the exception of "Zenith", which was left off the main album but added as an extra track to a limited edition.

[6] Tobias Forge later explained that he and Åhlund spent three months on pre-production before going to Los Angeles where they recorded the drums with a session drummer.

Upon returning to Stockholm they had a "very, very lavish, stupid sort of procedure" in a large studio with multiple people coming in and going or just hanging around, of which he said "On one hand, you think it's good for morale to do that, but no, it wasn't, evidently, in the end.

[16] Opening track "Spirit" used the "futuristic [and] sci-fi" guitar riff that gave a Nameless Ghoul the idea for the Meliora album.

[3] A Nameless Ghoul called "From the Pinnacle to the Pit" a "truly stomping riff-based song, Led Zeppelin-style" and "something that would sound great coming out of a car stereo in an American high school parking lot".

[17] "Cirice" was originally conceived together with "Devil Church", which was its opening, as a very dark and doomy nine-minute instrumental without a chorus.

The band tried recording it for Infestissumam, but after attempting to get it to "sound like Ghost" and adding and subtracting aspects, ultimately put it on the shelf.

[18] A Nameless Ghoul told Loudwire that the lyrics to the song were influenced by the suicide of Selim Lemouchi, guitarist of The Devil's Blood, who was friends with members of Ghost.

[23] During the Black to the Future tour, the band recruited local female fans to dress up as nuns and play "Sisters of Sin" while serving alcoholic beverages during each show.

[24] Ghost performed "Cirice" on The Late Show with Stephen Colbert on October 30, during a Halloween-themed episode, marking the band's first television appearance in the United States.

[26] In September 2016, Ghost released a special edition of the album, called Meliora Redux, which included "Zenith" and the Popestar EP.

[28] Thomas Woroniak of AntiHero Magazine said, "Ghost come out on top offering a compelling addition to the overarching message of self-determined freedom with a well-crafted album that rocks harder than ever".

He also added that the album "delivers more of a modern edge with sharper teeth when compared to its predecessor, while maintaining continuity with the overall evolution of the band’s characteristic sound".

[39] It was named one of the best metal albums of 2015 by several publications, including Rolling Stone,[40] AXS TV,[41] and LA Weekly.