The daughter of two opera singers, Matiakh obtained prizes in piano,
chamber music, conducting at the
Conservatoire à rayonnement régional de Reims and piano
accompaniment at the
Conservatoire à rayonnement régional de Rueil-Malmaison. At the same time, she began her musical career as a pianist and vocal conductor in various French institutions. She sang in the
Arnold Schoenberg Choir, under the direction of
Nikolaus Harnoncourt and
Ádám Fischer. From 2002 to 2005, she studied
conducting at the Musik Hochschule in Vienna in the class of
Leopold Hager and Yuji Yuasa and followed the advice of
Seiji Ozawa in
masterclasses. In 2005, Matiakh was appointed assistant conductor of the
Opéra national de Montpellier. Her replacement at short notice for James Conlon in May 2006 in
Shostakovich's Symphony No. 7 was highly noted and marked the beginning of her international career. In September 2018, the
Staatskapelle Halle announced the appointment of Matiakh as its new
Generalmusikdirektorin (General Music Director), the first female conductor ever named to the post, effective with the 2019–2020 season. This appointment marked the first music directorship for Matiakh. She has recorded commercially with the Staatskapelle Halle for Berlin Classics. In January 2020, by mutual agreement, Matiakh resigned from her Staatskapelle Halle post, effective 31 January 2020. In contemporary music, Matiakh has conducted works by Richard Dubugnon,
Bechara El-Khoury and Éric Tanguy. In November 2021 she conducted the premiere of
Philippe Hersant's opera
Les Éclairs at the
Opera-Comique in Paris. Matiakh first guest-conducted at the
BBC Proms in July 2022. ==Honours and awards==