[1] Her musical education began early, after her father's purchase of a grand piano, and a visit to her family by Zoltán Kocsis when she was age 8.

[2] She was also interested in dance as a child, but was diagnosed with a curved spine at age 10, and wore a body corset for 10 years.

William Christie invited her to work with his ensemble Les Arts Florissants, as a continuo player and musical assistant.

[5] Haïm's 2001 conducting debut with Glyndebourne Touring Opera, in a production of Handel's Rodelinda, brought her to wider artistic notice.

Her collaborators have included Natalie Dessay,[16][17][18][19] Ian Bostridge, Rolando Villazón, Philippe Jaroussky, Susan Graham, Sara Mingardo and Laurent Naouri.