The big London companies gave two UK premières in the space of a week, both dealing with the subject of teenagers being shot dead. Kaija Saariaho and Sofi Oksanen’s new opera Innocence was premièred at the Aix-en-Provence Festival in 2021 and comes to the Royal Opera in exactly the same production by Simon Stone, the Australian director responsible for that lockdown favourite The Dig as well as a shattering staging (in Munich, in 2019) of Korngold’s Die tote Stadt.