Morani’s historical background shines here. The book explains the classic typology:
A significant portion of the manual is dedicated to the physical and functional aspects of sounds. Linguistica Generale Gobber Morani.pdf
The opening chapters lay the groundwork by distinguishing between langage (the human faculty for language), langue (the specific system), and parole (individual speech acts). Drawing heavily on the foundational work of Ferdinand de Saussure, Gobber and Morani explain the semiological nature of linguistics. They define language not just as a means of communication, but as a cognitive system unique to humans. Morani’s historical background shines here