Sharing with you my latest discovery. Pietro Millioni was an Italian composer and author lived in 17th century. In 1649 he published a book of secrets entitled Gratioso pensiero ("Graceful Thought").
The book could be used to divine a name thought of through a mathematical principle described by Luca Pacioli in 1478 ("De Viribus Quantitatis", chapter LXXV).
In order to revive it, I have created an interactive version of the book: