I窶况e seen several people asking about a PDF copy of lately. First, a quick clarification to avoid confusion: this is not the 17th-century composer, but a modern Italian text on music theory (solfﾃｨge, harmony, rhythm).
Good luck with your studies!
Looking for Luigi Rossi窶冱 窶弋eoria Musicale窶�? A Practical Guide (PDF & Legal Sources) Luigi Rossi Teoria Musicale Pdf