artwork [«herold»-mask made by] Marlysa Fehr
cover [cover-design], design [cover-design] Güge Jürg Meier
cover [cover-design], design [cover-design] Pierre Bendel
cover [front-cover painting], painting [front-cover painting] HR Giger
drums, gong [gongs], percussion Güge Jürg Meier
engineer [engineered by] Carlo Martenet
engineer [engineered by] Ezio De Rosa
engineer [engineered by] Mario Carulli
executive-producer Erwin Pircher
keyboards, pedalboard [pedal-bass], crotales, voice [voices] Peter Scherer
lead vocals [lead - vocals], percussion Benjamin Jäger
mastered by Rico Sonderegger
mixed by Claudio Fabi
mixed by Ezio De Rosa
photography by Rico Fischbacher
producer [produced by] Claudio Fabi
saxophone [saxes], flute, clarinet, triangle, voice [voices] René Fisch
Recorded At Ricordi Studios
Mixed At Ricordi Studios
Recorded and mixed at Dischi - Ricordi Studios, Milano, Italy, 24th July to 3rd August 1977