There can’t be many ensembles around as stylistically fleet-footed as Hamburg’s Ensemble Resonanz. I’m still thinking fondly back to their Haas, Bartók and Berg programme on the Elbphilharmonie’s opening weekend; and now here they are playing historically informed CPE Bach with equal musical sensitivity and intellectual panache, joined by their artist-in-residence Riccardo Minasi (himself a period-performance chameleon) and their other regular collaborator, Jean-Guihen Queyras.