I wrote previously about the first performance of Mozart's Requiem. Still, I should add that initially, only two parts of the Requiem were played, the movements that Mozart had largely completed. Those are the Introitus (Requiem aeternam) and the Kyrie, which had been finished and only required orchestration.
Mozart Requiem 200th anniversary, I & II, Introitus & Kyrie
This footage is from December 5th, 1991, marking 200 years since Mozart died, but it was filmed in St. Stephen's Cathedral, not in St. Michael's Church. (More details in the quoted post.)
Conducted by Sir Georg Solti, with soloists Arleen AugΓ©r (soprano), Cecilia Bartoli (mezzo-soprano)
, Vinson Cole (tenor) and RenΓ© Pape (bass).
Konzertvereinigung Wiener Staatsoperchor (Vienna State Opera Concert Chorus)
and Wiener Philarmoniker (Vienna Philharmonic Orchestra)
View quoted note β