Now, a typically unusual catalyst has sparked the outfit's latest venture. Back in 2000, German director Jens Huckeriede was filming a documentary on the lives and legacy of pre-Nazi vaudeville musicians Ludwig and Leopold Wolf when he learned that Felonious' MC, Ph. D -- aka Dan Wolf -- was in fact Leopold's great-grandson. The filmmaker invited the San Francisco-based crew to Germany to record modern versions of the Wolf Brothers' popular songs with an equally talented freestyle hip hop collective from Hamburg known as the Trainingslager Bouncesystem . Beyond the cross-cultural experimentation on display in Huckeriede's doc, Return of the Tüdelband (which premiered this past week at the Castro as part of the Berlin & Beyond festival), the two groups have continued to work together and will give audiences a taste of their Bay Areabeat-box-meets-German freestyle stew at a pair of local shows. Expect a mix of boombastic impromptu collaborations as well as tunes from Felonious' most recent effort, The Produce Section, Vol. One.