Album cover by imaginary progressive rock band

1973. Double album of three instrumental tracks. Never reissued & now very rare: copies of the quadrophonic version in good condition now sell for thousands of pounds. Rumours persist of a hexaphonic mix although no copies of this have ever been sold on the open market.

The surviving band members are believed to have been working on the followup since 1974, in a remote castle in Bulgaria. The album will consist of a single chord.