Founding members of the Military Wives Choirs, including Caroline Jopp and Nicky Clarke, who speculatively wrote to Gareth Malone about their Catterick choir with no idea of the fame that would follow, have underlined the mental health benefits of singing in a podcast to mark the 10th anniversary of “Wherever You Are”, which shot to Number 1 in the UK charts in 2011. Hosted by Harry Bucknall.