This is a book from NEAR Alexandria, the first academic and near library on metaverse. This 3d voxel book is inspired in a real content, and it links to it. This NFT is not the digital content it links, but it is a way to publicize this content, that remains as open knowledge. Content published by NEAR.

https://near.org/blog/music-and-blockchain-introducing-the-future-of-sound/