"The Eternal" is the group's first release since January's "Mother Tongue", and was written as a tribute to Elisabeth Elektra and Stuart Braithwaite’s close friend Alanna.

The collective was created in 2021 by Mogwai's Stuart Braithwaite, Elisabeth Elektra, Evi Vine, Steven Hill, and members of Abrasive Trees, Burning House and Prosthetic Head, and Rochford, Elektra, Vine, Braithwaite, Hill, drummer Ash Babb and cellist Ben Roberts tracked the songs across four days at Great Bernera’s Black Bay Studios on the Isle of Lewis in the Outer Hebrides.