The project maps the acoustic dimension of Hamburg’s colonial traces. Sounds were collected from locations with a colonial past through different recording techniques. Voices that are seldomly heard in the debate and verbal information that marks the invisible were put in relation to each other. This collection, originally conceived as a sound installation for eight audience members, has been edited on the basis of the auditory figures as a multi-track mapping in digital space and can now be found online. Users can listen to Hamburg’s urban space in its colonial dimensions. Katharina Kellermann (Pelosi), How to Hear the Invisible – An Acoustic Mapping of the Post_Colonial Memory Landscape Hamburg (2016)