Hamburg’s iconic Elbphilharmonie is just as famous for its insane acoustics as it is for its programme, which weaves traditional classical music together with rock bands, festivals, and jazz — like the Scandinavian piano band Rymden, for example. On the occasion of their concert, we met the jazz trio in the so-called ‘Elphi’, where we delved into the history of the concert hall and considered, among other questions, whether jazz is the classical music of the 21st century.