BJ Nilsen (Hazard, Morthound, Tape Dekay) is a Swedish composer and sound artist based in Amsterdam. His work primarily focuses on the sounds of nature and how they affect humans. Recent work has explored the urban acoustic realm and industrial geography and mining in the Arctic region of Norway and Russia. Judith Hamann (Golden Fur) is a cellist and performer/composer from Melbourne, Australia, now based in Berlin. Her sonic art performances encompass elements of improvised, contemporary classical, experimental, and popular music. Sigtryggur Berg Sigmarsson is an Icelandic musician, painter, sound and performance artist and founding member of Stilluppsteypa. His musical output has been variously described as collage, quiet drone manipulations, and calm and minimal, which offers a range of still, contemplative moments, contrasted with more discordant ones. "Heiligenstadt" is the documentation of an encounter of the three artists in 2018. Ltd x 300 copies with cover artwork by Christoph Heemann.