Austrian guitarist and producer <a href="https://en.wikipedia.org/wiki/Ernst_Gottschmann" class="extiw" title="en:Ernst Gottschmann">Ernst Gottschmann</a>, concert with <a href="https://en.wikipedia.org/wiki/Sibylle_Kefer" class="extiw" title="en:Sibylle Kefer">Sibylle Kefer</a> during the  <a href="https://en.wikipedia.org/wiki/Donauinselfest" class="extiw" title="en:Donauinselfest">Donauinselfest</a> 2008.
Manfred Werner - <a href="//commons.wikimedia.org/wiki/User:Tsui" title="User:Tsui">Tsui</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>