“So what’s happening?” The five concerts in this year’s G´mischter Satz series are all characterised by originality and courage. The Erlkings take 200-year-old Lieder, give them a present-day setting and translate them into English. The CrossNova ensemble celebrates the particular style of humour that is Wiener Schmäh. Flip Philipp & Bertl Mayer offer the best in modern jazz sounds; and trumpeter Joe Hofbauer leads an All-Star Big Band, which simply swings. Karl Markovics, Clemens Bartolomey and the VBW Orchestra (Vereinigten Bühnen Wien, or United Stages Vienna) have put together a packed evening to commemorate Friedrich Gulda and H. C. Artmann.