Tickets can be bought at

https://www.barbican.org.uk/eticketing/selectseatblock.asp.

There are tickets from £11-£25 in the Circle and £28-£45 in the Stalls. My ticket is in the circle.

from Barbican website
Les Talens Lyriques
Christophe Rousset conductor
Emiliano Gonzalez Toro Phaëton
Ingrid Perruche Clymène
Isabelle Druet Théone, Astrée
Sophie Bevan Libye
Andrew Foster-Williams Épaphus
Matthew Brook Mérops, Automne, Jupiter
Benoît Arnould Protée, Saturne
Cyril Auvity Triton, Le Soleil, La Déesse De La Terre
Virginie Thomas Une Heure, Une Bergère Égyptienne

Phaéton became known as Lully’s ‘opera of the people’. At fifty years old, the composer was at the height of his fame and the peak of his abilities. He set about creating a theatre work that seemed to have it all: touching emotion against supernatural eruptions; tension and tumult against tender romance. But in this allegorical tale of the upstart hero Phaéton, Lully arguably saved his best for the increasingly active orchestra and multi-hued chorus; the latter’s inspired tunes were said to be spontaneously accompanied by humming audiences. Lully’s gallant and heroic tragédie lyrique is brought vividly back to life in this concert performance from specialist ensemble Les Talens Lyriques.

I will be on the ground floor, sitting near costa coffee from 7 pm onwards.