Multitude of Voyces, an organisation which brings music to underrepresented and marginalised communities, has compiled an Anthology of Sacred Music by Women, and is now seeking sponsors to help them to fund publication.
Directors Louise Stewart and Olivia Sparkhall have sought out old and new works for the Anglican liturgy written by women. Liturgical music written by women has been overlooked, “silenced by the historical norms of their times" as Stewart puts it, and the changing roles of women in the modern Anglican Church have not included a move to encourage music by women.
Here is an article that was published in the Church Times last year
There is more information on their website here
And if you would like to support this project you can contact them here