[1] The song is regularly used to end Mogwai concerts – most recently, in 2015, it was the finale of all six of the band's 20th anniversary shows – and was often extended in length.

[4] Although the band's song is an instrumental, the hymn's translation ("Inscribe us for blessing in thy book of life") is included in the liner notes to the record.

[4] The EP was widely billed as a "companion piece" to previous album Rock Action,[5] although in a 2018 interview Barry Burns said "I don’t really see it like that.

The heavy guitars then play a number of different riffs whilst the song slowly becomes louder, until the drums drop out and the melodies cease at around the 17 minute mark.

[9] It was thus unsurprising that a number of reviews of the single referred to the live shows; Michael Clarke, writing in Drowned in Sound, said that "their live set highlight has been a mysterious, unreleased carnival of noise mainly used as the closing track ... Mogwai literally brought the house down and blew anyone, within distance to hear, away each time they played the instrumental haunting track".

[4] AllMusic commented that the song "retains the experimental, arty flair Mogwai is identified with" and noted the "nicely noisy production job from a man accustomed to such things, Steve Albini".

This version, on CD and 12" EP, included two live songs recorded at Rothesay Pavilion, Isle of Bute on 14 April 2001.

[13] In addition to Mogwai's usual line-up, regular contributor Luke Sutherland played violin, and Caroline Barber cello.