Tillmann Richter. Tillmann Richter has worked as a mixed methods User Researcher supporting the Live Product Team at Ableton for 6 years. His interest in the relation that people have with technologies led him from an M.S. in Media Studies at the University of Amsterdam to jobs in product management and eventually to work as a user researcher. On the side, all this allowed him to comfortably fund his passion for writing, producing and performing music in bands and experimental projects.