Eric Leonardson led a public soundwalk with over 20 people in Rogers Park, Chicago on Sunday, September 15. This event was supported locally by the Midwest Society for Acoustic Ecology and PO Box Collective, one of the 19 Hush City Soundwalks using the Hush City mobile app in multiple cities worldwide to celebrate the Sound Walk Sunday 2019, organized by Berlin-based architect Antonella Radicchi.