As much as La Ballerina, the Cantatrice - here portrayed in a very nice colored etching by Maurice Sand - is an idea of mine of a "Caratterista Entertainer". But why not.
We know for sure that in every Commedia dell'arte troupe there was a woman, unskilled (especially at the beginning!) in the art of acting, but which maybe could offer another - and how much welcomed! - kind of performance.
And maybe a nice song - there must have been at least one of the actors capable enough to play a guitar in the background - could have been desirable.
And the non-common appearance on stage of a young woman, could be a treat for the public, and a break for the actors, that was exactly what the Caratterista was supposed to offer.