Some of the women composers who feature in this year's Woman Composer Sunday repertoire list from SWO: clockwise from top left:  Nkeiru Okoye (photo Matt Gray), Alice Parker (portrait by Eduardo Montes-Bradley), Louise Farrenc, Margret Bonds   On Sunday 10 March, The American Guild of Organists (AGO), the Society of Women Organists (SWO), and the Royal College of Organists will celebrate organ and choral music by women by inviting everyone to play or sing something by a woman composer on that day - Woman Composer Sunday. Woman Composer Sunday began five years ago, originally as…