Giacomo Puccini’s Il trittico, which premiered at the Metropolitan Opera in 1918, is a triptych of one-act operas comprising Il tabarro, Suor Angelica and Gianni Schicchi. 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...