This record is a collaboration between Anna Neubeck, Eskil Floden, and Kristoffer Palmgren. We have under several months recorded the activity of anaerobic archaea in different mixtures of growth media. Archaea is a type of unicellular microorganism much like bacteria but makes up a completely own domain in the tree of life. The data we collected have then been used to create different digital instruments that combine the biological life of these microbes with programmable synthesizers. The sounds created have then led the way to create these five short audio sequences making up this record.