Albrecht Maurer (v) in concert „Live Remix“ with ‚Tonstrom Quartett &amp; Alex Gunia’ in the concert event „Cologne Music Night“ at Thyssen Foundation, Cologne, Germany, September 19th, 2015
<a href="//commons.wikimedia.org/wiki/User:Annamarie_Ursula" title="User:Annamarie Ursula">Annamarie Ursula</a>
CC BY-SA 3.0 de
<span class="int-own-work" lang="en">Own work</span>