Of course, next month’s Christmas Carol Singalong at London’s Albert Hall had to be led by one Jonathan Cohen.

The festive musician, whose credits include Playschool and Rentaghost, hails from the wouldn’t-have-got-into-JFS branch of Cohens, being of paternal Jewish descent, as well as a former church organist.So little chance of him slipping in Maoz Tzur between the herald angels and merry gents.