How do things work in a couple? In music as in love: with communication, which can be harmonious, conflictual, or constructive. "The Art of the Duo," the title of a new series at the JazzNights in early 2023, proves this emphatically – with two top-class duo members in one evening. Trumpeter Nils Wülker and his guitar colleague Arne Jansen enrich their long-standing collaboration with the spontaneous use of electronics. The "poet of jazz" (DIE ZEIT) Julia Hülsmann at the piano and vibraphonist Christopher Dell are different, presenting purely acoustic music. Incidentally, Dell is not only world-class on the vibraphone, but also a fascinating person: he teaches architecture at the university, heads Berlin’s Institute for Improvisation Technology which he founded, and is a wonderful example of the versatility of musicians today. If you only understand music, you don't understand much about music either. These four also get along fabulously, and so will be performing as a quartet for the finale.