https://sites.google.com/view/artmaestria/accueil The purpose of the Art Maestria collective for the Joconde series has been a together artistic research around the universal symbol that Mona Lisa has embodied. To introduce her in the NFT field, the collective have wished to stress upon the mystery that has arisen from her. Of course there has been her enigmatic smile which has deeply contributed to the painting fame, but also the technique of "sfumato" (Italian, smoky) of which Da Vinci was so much fond of. This is why each Mona Lisa has been slowly appearing in a colorful blur, which has been reminding us of sfumato at its climax, then has been right away disappearing. This animation of the image, which reinforces the notion of mystery of the initial painting, is accompanied by music created especially for these NFTs. Each Mona Lisa has its own intimate murmur, but if you put them together and play them together, they harmonize and let us hear a modern and delicate melody.