There was one song released exclusively for the German marketplace:
• Stieber Twins - "Malaria"
Also, to bring it in line with the rest of the European marketplace, France received one song on December 3rd:
• Eric B. & Rakim - "Paid In Full"
All songs are priced individually at 160 Microsoft Points.
Unfortunately DLC support for other countries seems to have dried up at the moment. No new songs have been released in the other European marketplaces since November 26th; America has not received any DLC since November 16th. However, 4mm Games did announce on their community website
that more DLC will be arriving for the game in the future.