Miguel Bernal Jimenez is undoubtedly the most important composer of sacred music of the 20th century in Mexico, as well as a nationalist. This piece is taken from the book "Catedral, 23 piezas para órgano" and is, as far as we know, the first performance of this church organ piece to be made into a NFT in history. 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.