Without doubt the highlight for me was singing Benjamin Britten's cantata "Rejoice in the Lamb". Britten wrote some joyfully bonkers music to accompany the completely bonkers libretto by Christopher Smart. Challenging to sing, yes, but once you "get it", it's enormous fun.
For the flowers are great blessings.
For the flowers have their angels,
Even the words of God's creation.
For the flowers are peculiarly
The poetry of Christ.
Cartoon from Climate Cartoons.