The father of music is known to have written little exercises to test the sight-reading and interpretation of his pupils. These little gems remain to this day an integral part of the repertoire and training of pianists, even though they were originally written for harpsichord. This invention, taken from Bach's 2-part inventions, is the very first instrumental piece by Johann Sebastian Bach, to be preserved in an NFT in history, as far as we know. 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.