3 adjectives to describe improvisatrice

She is the daughter of the proprietor of the Teatro della Valle at Rome, and sometimes performs herself in dramatic pieces; yet, strange to say, tho' she is an admirable improvisatrice and possesses a thorough classic and historical knowledge, she is but an indifferent actress.

Other women were youngerand with features more conventionally beautiful; Kent could find a round dozen within easy eye-reach, to say nothing of the calm-eyed, queenly improvisatrice at the pianohis constant standard of all womanly charm and grace.

An extraordinary account appeared a short time back in a well known Scotch magazine, of a female improvisatrice, which may have met your notice.

3 adjectives to describe  improvisatrice