Sonja wrote over 200 works and obtained a PhD at Birmingham Conservatoire. She was a passionate campaigner for equal opportunities for women in the arts.
Her "Double Concerto for Bass Trombone and Clarinet" was performed by the Orchestra "I Solisti Veneti" directed by Claudio Scimone in Italy in 2017 with support from Donne in Musica as part of their work highlighting the considerable wealth of fine female composers in Europe.
You can listen to her work "From Dark to Light" here:
There is a thoughtful obituary by Sheila Mosley about Sonja's life and her work with the People’s Arts Collective in Leicester which you can read here: