On a perishingly cold day I find myself talking with Harry Christophers, the world-acclaimed conductor and director of The Sixteen, about Lent. It has long struck me that most people seem to think that when it comes to liturgy this is a boring time of year. That wasn’t necessarily my experience when I helped run the music at Pusey House in Oxford many years ago, for the choir came into its own with unaccompanied music that tested the singers’ skills for several weeks at a time – and all first thing in the morning.