In the organizer's words:

Before we know it, Christmas is just around the corner. If you're still not in the mood, we invite you to an open-air sing-along concert.
The campaign vielfalt. viel wert. and Bonn musicians from the "Sing mit Valentine" group want to sing old classics with you, from "Leise rieselt der Schnee" to "Rocking around the Christmastree". It's all about having fun and not about being able to sing! Come with family, friends, work colleagues or meet new people on site, because singing connects hearts. And so that the excuse "I don't know the words!" doesn't work, we'll be handing out booklets on site.
Hot drinks (mulled wine / non-alcoholic punch) will also be provided.