Celebrated techno producer Kassem Mosse released his debut LP Workshop 19 earlier this year, and now heads a tantalizing double bill of techno and deep house at Belfast’s Queens Student Union on Saturday, August 16, courtesy of the city’s premier electronic booking agents, Tw!tch. The German DJ and producer, real name Gunnar Wendel, has released one of the most engrossing and curious electronic LPs of the year in Workshop 19, and has several high-profile admirers in the genre in Omar-S and Joy O. Support on the night comes from Bristol producer Kowton, whose mix of heady dub influences and house textures…