I remember as a member of the Halle Choir (Manchester UK) preparing for a concert featuring Mozart's Requiem. The guest conductor was Arvid Jansons, and we all had to re-learn our Latin pronunciation... he wanted the German pronunciation (understandably!), which has now all but escaped my memory. John Rust was the choirmaster at the time, circa 1969.

I do remember 'Luceat' (Luceat Eis) had to be pronounce 'lootsayat', which was something of a wrench having pronounced it 'loochayat' until then! If I can remember any more I'll post it, but don't hold yer breath!

The concert was in the Free Trade Hall, and rehearsals were at the Zion Centre in Hulme. I was asked to resign from the (amateur) choir about a year later when I explained that I wouldn't be attending some rehearsals because of my final exams... fancy having to choose between an amateur choir and final exams affecting my future career. Difficult choice!