Here are the links for the Audience Feedback Apps.
An Explanation follows later.
mh-freiburg.de/feedback-app/concert/eas2021
mh-freiburg.de/feedback-app/words/wcl/eas2021
Oscillating between multi-stage livestreams and performances on the streets and roofs of Freiburg, our grand Thursday Concert NIGHT presents great music and the city’s best PLACES on your DISPLAYS. Digital artists, baroque violinists, freestyle rappers and hip hop dancers do music - challenged by today’s distance-driven performance modes. They surprise you with futuristic digital tools and invite you to interact with improvisers through our brand-new audience feedback tool. Light up your displays, turn up the sound and experience what people do to make Freiburg sound!