Pina Bausch is to dance what Picasso is to painting or Giacometti is to sculpture – a genius who changed the parameters of the medium for future generations. Each of her pieces is a treasure that you wish would never end, so it's a privilege to view her telling of 'Orpheus and Eurydice' at the sumptuous Opéra Garnier. Bausch's 1975 retelling of Gluck's opera entered the Garnier ballet company's repertoire in 2005. Each of the principal characters – Orpheus, Eurydice and Love – is represented by both a dancer and a singer, taking on different aspects of the role, following each other like shadows. The stage set is minimalist, the choreography precise and emotional, the costumes play their part with flowing silks extending the dancers' movements. Divided into four pieces (mourning, violence, peace and death), this isn't a cheering version of the myth – but it is a show that you should try to see at least once in your life.