itch.io

I've been using this for a character I am using in a Pathfinder 2e game. The GM has been very loose with the limitations on it but I am looking for a little insight on how this is supposed to work. For a Cantrip, that is a level 0 spell it would have no words. How does that work? Furthermore it says that you can only have as many harmonics as the number of words but for a 2nd level spell the power is 11-18(it says 11-25 for 2nd-3rd level so I averaged it out for 2nd.) With only 2 harmonics how does one make it to this level? I feel like I am missing something here that I am supposed to be using to increase the spells limits. Are there more harmonic options I am not aware of or am I missing a step here?  I am really enjoying the spells I am making using this book but I'm just a bit confused at this point due to this limitation.