The arias of La traviata are instantly recognisable. Yet at its London premiere in 1856, it was denounced for bringing 'the poetry of the brothel' to the stage and unleashing uncomfortable truths on Victorian society.

Glyndebourne's celebrated production of Nikolaus Lehnhoff's Tristan und Isolde is a supremely intelligent achievement; gravely beautiful, haunting and meditative, it is deeply reflective rather than visceral, fortified by Roland Aeschlimann's stunningly effective set, a womb-like space through which the protagonists move like gods. Conductor Jiří Bělohlávek mirrors Lehnhoff's approach in his sophisticated plumbing of the score's depths, with every shift in texture carefully laid bare by an inspired London Philharmonic Orchestra. Nina Stemme's Isolde and Robert Gambill's Tristan, both gloriously lyrical, are matched by superb performances from René Pape as the betrayed and vulnerable King Marke and Bo Skovhus as Kurwenal, deeply touching in his helpless devotion to Tristan. This High Definition recording of a production of uncommon intimacy reveals the opera's music and drama in a new light.

A team of scientists becomes trapped in the frozen Arctic wastelands. Tensions rise and relationships crumble, and then something appears, out of the ice. This fourth collaboration between composer Stuart MacRae and librettist Louise Welsh is their most ambitious to date. With unrelenting drama and superb storytelling, Anthropocene engages with the crucial issues of our time – climate change, sacrifice and our ceaseless quest for knowledge.