Another confession: Instead of attacking De Occulta Philosophia, I'm going for the throat on Marsilio Ficino.
A few years ago, I came across a book called "Music in Renaissance Magic" by Gary Tomlinson. He focuses on the magic of a man named Marsilio Ficino, who was a priest and the doctor of Lorenzo de Medici. Ficino is somewhat contemporary to Agrippa in the way that they both translated documents from Greek into Latin, and then proceeded to create their own synthesis of learning from those experiences.
Ficino stood out to Tomlinson because he wrote magical music. None of that music exists; it has all been lost to time, as Ficino's De vita libri tres has been out of my reach through library (another long story) and is too expensive to purchase. Until now.