Requiem is a kind of special mass celebrated by Christian churches in honor of the dead.
The Catholic Church is the main doctrine to hold the so-called "requiem masses", however also this term can be used to name similar ceremonies of Anglicanism and the Church. Orthodox.
The term "requiem" originated from the Latin requiem, which derives from requests, which means “rest” or “rest”.
At funeral masses (celebrated during funerals) typical of the Catholic Church, requiem is the first word to be said during the ritual dedicated to the repose of the deceased's soul: Requiem aeternam dona behold, Domine (“Lord, grant them eternal rest” in the Portuguese translation).
This is also the name given to the genre of musical compositions created specifically for funeral ceremonies or to honor the dead.
One of the best known melodies in this genre was created by Wolfgang Amadeus Mozart, in 1791, and became known as “The Requiem in D Minor”.
A requiem mass can either be done at the time of the funeral or on dates that mark someone's death, such as “seventh-day masses”, for example.
See also the meaning of orthodox church.