You might imagine that Vatican officials would only listen to Monteverdi and Palestrina. But Archbishop Paul Gallagher, the Holy See’s foreign minister and incidentally the highest-ranking Briton in the Vatican, has revealed another side to ecclesiastical taste. According to a Times preview of the BBC’s forthcoming Inside the Vatican documentary, those passing underneath the archbishop’s office over St Peter’s Square might hear the strains of Sweden’s best-known musical export. Archbishop Gallagher is seen “cranking up Abba”. Early reports on the documentary don’t reveal what song was playing in his office.