director Natalie Katsou and designer Yiannis Katsaris emphasised the suffocating atmosphere of Menotti’s work. Creative team and cast alike rose to the challenge of the deceptively tricky music and of the cramped space. Manoeuvring effortlessly round two cages, like large upended hamster wheels, the five singers and one actor showed impressive drill and evidence of scrupulous rehearsal. A supernumerary aerialist (Kahless Giles), who swung and perched with agile discretion throughout, added mysterious intensity.