I remember Requiem funderal Masses quite well. I do, however, think it’s a mistake to characterize them as “sad” Masses. I was just an impressionable kid at the time, but I did not think of them that way.
Some years back, my daughter wrote a college paper; perhaps in psychology. It was a comparison of Mozart’s “Requiem” and Elizabeth Kubler-Ross’ “On Death and Dying”. It was fascinating how Mozart’s Mass contained every single element in Kubler-Ross “enlightened” analysis, though Mozart actually contained more than did Kubler-Ross. Ultimately, my daughter demonstrated some ways in which Mozart (and the Church, as Requiem Masses had a particular liturgy pattern, no matter who wrote the music) had a better understanding of death than did Kubler-Ross.
I can’t repeat what my daughter wrote. Wish I could. It was very complicated, and she received an A+ and a rave review by her professor. But what she said fit what I remembered about the Requiem Mass.
Yes, there are “sad” parts. But the “sadness” is a respectful sympathizing with the natural, and inevitable, sadness of those who were close to the decedent. There is one “terrifying” part; the “Dies Irae”. (“Day of wrath, day of mourning…”) Reminds us, the living, of death and judgment, so that the decedent’s situation was instructive to us, and thus had more meaning that perhaps we supposed. There were “comforting” parts. The “Requiem” itself was soft and comforting; almost a lulaby. “Eternal rest grant to him/her O Lord, and let the perpetual light shine upon him/her.” Very peaceful and accepting.
There was definitely an upbeat aspect to it, as the congregation committed the decent’s soul to God; prayed for the decedent and expressed hope and trust in God.
Others might have thought so, but I didn’t find it “sad” at all, except to the extent that it acknowledged we were already sad at the loss of a loved one, or even a fellow human being we might not have known. Seems to me acknowledging that sadness is a natural part of the mourning process; something we should not ignore or pretend away.