Daumenlage / Thumb position

This is what separates a double bass from an electric one:

https://www.flickr.com/photos/wjlonien/48152720326/
Daumenlage / Thumb position, Schlitz 2019

Another photo from Alexander Dawo which I took last week in Schlitz. And yes, he explained to me later how to get in and out of this Daumenlage…

As always, thanks for reading and viewing.