Composed in 1911, Bluebeard's Castle is Béla Bartók's only opera – a radical masterpiece which has secured a place alongside the other innovative music dramas of the same period, from Debussy's Pelléas et Mélisande to Berg's Wozzeck. Planning to write a one-act opera, Bartók settled on a libretto by Béla Balázs with the kind of surreal and/or macabre themes that would soon feature in his two ballets, The Wooden Prince and The Miraculous Mandarin. The main source for the libretto text was a play by Maeterlinck, a retelling of Perrault's gruesome tale of Barbe-Bleue, the sinister yet strangely seductive wife-killer. Balázs turned the drama into what he called a 'mystery play', however, and his stylisation of the story throws the weight of the drama onto stage-setting and music. Susanna Mälkki and the Helsinki Philharmonic Orchestra have already proved their Bartók credentials with a disc of his ballet scores which was chosen as Record of the Week in BBC Radio 3 Record Review and earned top marks in Diapason and on the website Klassik-Heute. Joined by Mika Kares as Duke Bluebeard and his Judit, the Hungarian mezzo-soprano Szilvia Vörös, the team here performs Bartók's darkly glittering, shimmering and threatening score in a live recording from 2020.