Where does “tabulatura” come from?

tabulatura (Latin) comes from Latin tabula, from Proto-Italic *taðlā.

Ancestry of “tabulatura”, step by step

Step	Language	Word	Meaning
1	Latin	tabula	tablet, sometimes a tablet covered with wax for...
2	Proto-Italic	*taðlā	—

tabulatura — Etymology, Origin & Word History | Etymology Explorer