It’s Friday – the day of the week that we remember Jesus’ Passion and Death – not just during Lent, of course, but year round.
Doing some research, I discovered the Ultimate Stabat Mater website. I really don’t know how I had not run across it before:
Hans van der Velden started collecting Stabat Maters in 1992. After five years, when he owned about 40 Stabat Mater CDs, his partner Hannie van Osnabrugge created the Ultimate Stabat Mater Website with FrontPage.
The site contained all his notes on the composer, the composition, the original Latin text, and the translations. Hans continued his search for Stabat Maters, and regularly updated the site with new composers and translations.
Via the website Hans came into contact with music lovers, musicians, and composers from all over the world who provided him with new information about compositions and translations. The Stabat Mater collection became one of his passions. In his own words:
When I realised, one day, that I owned several CDs with a musical setting of the Stabat Mater I decided to start a real collection. The Spectrum Muziek Lexicon by Theo Willemze named some 15 composers, so this should be not too difficult. It appeared, however, that the number was substantially larger. I now know about some 600 composers, who, (fortunately), have not all been recorded on CD yet. Still, a substantial fraction has been released on CD and my collection grew rapidly. Beside this list of my collection of CDs I have made another list of composers, who as far as I know have not yet been recorded on CD (more than 400).
A collection invites comparing, and that is what I do. I analyse the text and note the differences, as it appears that several variations of the Stabat Mater poem exist. I listen to the music and I try to present the results in an easily surveyable way. This comparison is handicapped by the fact, that, in the field of musical theories, I am illiterate and not even able to read music. Therefore, many of the opinions in this area come from the accompanying CD-inserts. Besides that, I try to give an impression of what I heard. This is, in effect, a question of sense and sensibility. I give a description in words, coloured of course by my own taste, and I give a graphical representation of the piece ..
When Hans died on December 28th, 2005, he possessed 211 different Stabat Mater compositions on CD. The final composition he added was by the Polish composer Henryk Mikolaj Górecki. After his death, his spouse continued collecting Stabat Mater compositions and managing the site.
Charlotte was Both 
Never heard of Stabat Mater.