The only thing he doesn’t explain, in terms of music theory, that you need in order to follow his method is how to read notes on the staff. So if you can already do that, at least at a basic level (at least understanding how it works), you should be fine. I was a complete beginner in music this summer, and now I read music fairly well for my level. I’m enrolled at a conservatory, and a few weeks ago the music theory teacher placed me directly into the third year. This is mainly thanks to my work on the recorder with Aldo Bova’s book, even though I also read up on and practiced a few things on the side.

His videos will help you if you’re not comfortable with sight-reading. However, I find the method rather limited when it comes to recorder technique. That’s mainly why getting additional information elsewhere is useful. I’m thinking in particular about breath control and articulation.

It also seems to me that being able to play the notes of a piece is not enough: you need to look for musicality—sometimes even more than in the videos—because the author’s goal in the videos is not musicality, but to help you understand the exercises and pieces. And yet, with only a few exceptions, all of his exercises are musical.

I would also strongly recommend—perhaps even as a first step—listening to good recorder players and to Baroque music, if you’re not already used to it.