Irina Brook’s Brecht–Weill triptych at La Scala confronts our broken world through recycled glamour and bitter song

The glamour is seductive. The rhythm infectious. But the mirror is unforgiving. In Irina Brook’s uncompromising triptych at Milan’s Teatro alla Scala, currently playing through 30 May, the world of Brecht and Weill becomes a looking glass for our own, reflecting a society where morality, compassion and even the scenery itself have been traded for profit.