The Infinite and the Divine code

I was reading the book again

I got to the part where Orikan tells Trazyn that the code of serenade is connected to the War in heaven theater play. (Act 4, end of chapter 1)

I realized in the book there are parts of the theater play and found all 4 codes 3211-1545-4131-5322

(3211) Act 1 chapter 4; (1545) Act 1 opening; (4131) Act 3 chapter 4; (5322) Act 3 chapter 8.

I managed to get the message (but in my books language (Italian 😅))

Online I found nothing about it, so I have no way of confirming if I got it right.

Anyone else here found this?