Aggro Berlin is a German hip-hop independent record label based in Berlin, Germany. Ever since Bushido left in 2006 (fall), Aggro Berlin equals that MC with the silver mask. "Aggroberlin Zeit" ("Time") is a pure rap instrumental track and could certainly be googled:
Aggroberlin Zeit Instrumental (2005) .rar
You could find this Rapidshare link right away...
Rapidshare.com/files/1982865/Aggro_Berlin_Zeit_Instrumental.mp3.html