Streng Geheim Drum Corps

The Streng Geheim Drum Corps (Zusian: ᛋᛏᛡᛂᛝ ᚸᛂᚺᛂᛁᛘ  ᛨᛡᚬᛘᛘᛂᛚᚦᚬᛡᛈᛊ Streng Geheim Trommelkorps) is a  based in Epsern, Zusea. Known for their distinctive black uniforms and black cavalier hats with white plumes, the corps includes 25 drummers and section. They became famous for their demanding and theatrical six-minute performance at the 2008 Emperor's Own War Tattoo in Skalagard. This performance marked the first time a non-military act performed at the Schwarzau Palace during the War Tattoo. According to the Imperial Chamber, Basilikar Raphael VIII chose Streng Geheim personally for this honor.

Since their success in 2008, Streng Geheim has been invited back to the Schwarzau in 2009, 2012, and 2016, and began touring internationally in 2017, ocassionally acting as unofficial cultural ambassadors for Zusea. In 2019, the corps helmed the inaugural Epsern Tattoo, a military tattoo show similar to the Emperor's Own. They have also became a focal point of Stursian regional pride, and their popularization of traditional folk music has helped stir regionalist seperatism in the province of Upper Stursea, which was absorbed into the Duchy of Tarmory in 1956.

Streng Geheim draws heavily from the rich drumming traditions of Epsern, which is known for its annual carnival, the Epser Fasnacht.