In Aristotle’s Poetics, catharsis was considered a desirable state brought about by arousing and magnifying the emotions in such a way that the spectator’s inner being would be purified. The best way to do this, Aristotle reckoned, was to evoke fear and pity by confronting an audience with a vision of souls in torment.

The musical equivalent is what Catalan countertenor Xavier Sabata aims to induce on the enterprising Aparté label with a string of mostly unknown opera seria arias by the likes of Orlandini, Conti, Torri, Caldara, Ariosti and Sarro plus a handful of classics from Handel, Hasse and Vivaldi thrown in for good measure and a nod to marketing. Not that marketing needs much help. With the hirsute Sabata taking what I presume is a cathartic icy shower on the cover, this is a CD that is unlikely to go unnoticed on the shelves.

With a good recital disc, the programme is half the battle, and in that respect Sabata has played an absolute blinder. He opens with a real find in the form of a classic ‘nemesis-aria’ from Orlandini’s Adelaide. Sabata has one of the richest, darkest countertenor voices on the circuit. Blessed with...