Sheffield Cathedral Choir is marking Ash Wednesday with the singing of Allegri's beautiful Miserere in a Sung Eucharist at 19.30. 

Allegri's Miserere sets the Ash Wednesday psalm of repentance, Psalm 51. It's a deeply reflective piece, in which the choir calls out again and again to God. 

There's a famous story about Allegri's Miserere. It was originally written for the choir of the Sistine Chapel in Rome, and successive popes refused to make the score available to others. The fourteen-year old Mozart visited the Sistine Chapel in about 1770, listened to the Miserere, and wrote down the entire piece from memory. 

Everyone is welcome to take part in the service.