As an ensemble singer (soprano), Josephine regularly performs with UK leading choirs such as EXAUDI, Tenebrae, The Tallis Scholars, The Erebus Ensemble, Philharmonia Voices and Britten Sinfonia Voices. She sang with the London Contemporary Orchestra on Radiohead's latest album A Moon Shaped Pool (2016) and is a founding member of the new vocal ensemble SHARDS which first performed as part of Nils Frahm's weekend festival 'Possibly Colliding' at the Barbican (2016).
As a soloist, she sang in a performance of Philip Glass's epic Music in Twelve Parts led by James McVinnie at the Barbican (2017), in Morton Feldman's Rothko Chapel with LCO soloists at the Roundhouse (2016), in George Aperghis's La Nuit en Tête with Explore Ensemble at the Royal College of Music (2016), and in Berio's O King with the Bristol Ensemble at Bristol's Elektrostatic festival (2012). She was Irma in Tom Phillips's opera IRMA with Apartment House directed by Netia Jones (South London Gallery, 2017), and has premiered roles in operas by Anton Lukoszevieze, Kate Whitley and Joel Rust. Her solo voice can be heard on records by Jon Hopkins and Lokki, as well as in John Cameron Mitchell's film How To Talk To Girls at Parties (2017, music by Nico Muhly).
Josephine was part of the Maîtrise de Radio France -the French radio children's choir- as a teenager, and went on to being a choral scholar at Clare College, Cambridge as an undergraduate. Whilst at Cambridge she sang the roles of Yniold in Debussy's Pelléas et Mélisande (Cambridge University Opera Society, West Road Concert Hall) and Filia in Carissimi's Jephte (Clare College Choir, France tour).