Giacomo Puccini’s Il trittico, which premiered in 1918, is a triptych of one-act operas that were always designed to be performed together. The composer originally intended for each opera to reflect one part of Dante’s Divina Commedia, although in the event only the final work is based on the poem. As a result, the only theme that really underpins the operas is that they all involve, in one way or another, the concealment of a death. The Royal Opera’s current...