Since the 13th century, the Catholic Church has accompanied the Blessed Virgin Mary with this hymn every 15th September, the day on which her sorrows at the crucifixion and death of her divine son are commemorated. Liturgically it is a sequence. This is the first time in history, as far as we have records, that a performance of this piece is turned into an NFT. In addition, this NFT contains the only copy of the performance of the work. The file will be destroyed after mining, to make this NFT an absolutely unique piece.