Joanna Borrett is a composer and cellist. Her music is published by U.M.P. and she is a house composer at Kevin Mayhew. Several of her pieces are included in the ABRSM and Trinity College exam syllabuses.

Joanna’s first string orchestra work – Clan – was recorded by Her Ensemble in 2024  and chosen as Album of the Weekend by Magic Classical and Video of the Day by Gramophone. The third movement has been played on Radio 3's programmes Earlier and Classical Unwind and Clan has been performed at the investitures at Holyrood Palace.

The recording of Joanna’s song cycle – Moments of Freedom – came out in September 2025 and this year Signum  Classics is promoting three of Joanna’s string orchestra pieces. The first of these – Then – has just been released and the second - a concerto grosso called Rebellion - will be released on July 28th.