The choir I sing with, the Southampton Phil, is putting on a performance of Verdi's Requiem next Saturday, in Winchester Cathedral.
We will be performing without scores, so I've got to learn my part from memory. I've got most of it down well, but there's a short passage in the Sanctus (the Benedictus) I just can't remember when to come in on. The Libera Me is also tricky to remember – it's pretty complex. However, I'm sure I'll get there.
Still, minor uncertainties about the score aside, it should be a great performance. Things always go far better when performed without scores, as it means the choir don't have any option but to look at the conductor, so everything's on time. Tickets are going fast; get yours now.