Searching for a Band

for this documentary project I’m searching for a Band played at the 7.7. at about 21 o’clock at this dead end road near “Grüner Jäger”, between “Stresemannstr” and “Neuer Pferdemarkt”.

They didn’t play on a stage, the played on the ground in front of their bus.

Please share this and contact me if you have any suggestions who they are.