Moon Duo's fourth album, released in 2017, is a psychedelic work in two separate volumes. *Occult Architecture* reflects the harmonious duality of these dark and light energies through the Chinese theory of Yin and Yang. Following this logic, Vol. 1 embraces and embodies Moon Duo's darker qualities. *Occult Architecture Vol. 1* was mixed in Berlin by Jonas Verwijnen, a long-time collaborator of the band.