In the photo people led by musicians-ringleaders are dancing a traditional circle dance on a balfolk event.
Warsaw, 25th of Febuary, Nowy Świat Muzyki, live band playing: Janusz Prusinowski Kompania
<a href="//commons.wikimedia.org/w/index.php?title=User:Pannzerka&amp;action=edit&amp;redlink=1" class="new" title="User:Pannzerka (page does not exist)">Pannzerka</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>