51% of the world's population is female
10% of the permanent Directors of Music and Organists in English and Welsh Cathedrals are female
8% of the organists listed on one of the main UK organ recitals page are women
6% of recitalists at high-profile London venues in the first half of 2018 were female
Statistic 1: https://data.worldbank.org/indicator/SP.POP.TOTL.FE.ZS (November 2019)
Statistic 2: https://en.wikipedia.org/wiki/List_of_musicians_at_English_cathedrals (July 2020); https://en.wikipedia.org/wiki/List_of_musicians_at_Welsh_cathedrals (July 2020).
Of the 52 Cathedrals listed, most are Angelican, with a couple of Roman Catholic Cathedrals where there is a substantial music programme.
Statistic 3: http://www.organrecitals.com/1/diary_org.php (November 2019)
Statistic 4: http://www.organrecitals.com/1/recitals.php?reggrp=lon (November 2019)