The transformation of sound to image and back from image to sound is an integral element of Ebner’s work. Likewise, sound and the city have always played an important role. The Dortmund Demo Tape series examines the sounds of the everyday activity on public squares, in shopping centres or in soup kitchens. The resultant drawings developed from the soundscapes capture certain tunes incidentally recorded, such as when children were recorded playing football. Traditional music notation is merged with graphical elements that focus on dynamics and movement.