The tracks here originally appeared on four separate 12"s: "ShT" (1985), "Ha - Zulu" (1986), "Big Sex" (1987) and "Broadcast Test" (1989). They were conceived to represent "The Symbolism of The Great Work" (Magnum opus), which is an alchemical term for the process of working with the prima materia to create the philosopher's stone. It has been used to describe personal and spiritual transmutation in the Hermetic tradition, attached to laboratory processes and chemical colour changes, used as a model for the individuation process, and as a device in art and literature.

The accompanying booklet goes further into the Occult and Esoteric ideas that T.A.G.C. where researching and implementing into these recordings. Also included are two exclusive remixes by the late Richard H Kirk (Cabaret Voltaire), produced and developed by Adi Newton in 2019.

Remastered by Jacque Beloeil. Ltd x 500 copies in an A5 digipak including a 16-page facsimile of the original booklets included with "Ha - Zulu" / "ShT".