Haydn, Joseph (1732 - 1809) Eja Gentes (graduale pro omne tempore). 

If you can find a Latin Mass near you they often sing this beautiful music.

Sooner or later there will come a time when the Holy Sacrifice of the Mass, all over the world, will be ornamented with a liturgic repertoire equally dignified. Thank you very much for the comment. musicamagnamusica@gmail.com