This song is part of a cante-fable in which the wife warns her lover that the husband is at home by singing a song.
This plot first appears in 1353 in Boccaccio's _Decameron_, Day VII, Tale I. It is Type 1419H in the Aarne-Thompson inex "Types of the Folktale" (Helsinki, 1961). - EC, RBW
Legman gives extensive notes to the folktale and cante-fable in Randolph-Legman I. - EC