What is the italian opera song that includes the words "mutta d accento" or something like

The opera is "RIGOLETTO" by Giuseppe Verdi and the aria/romance is "La donna 猫 mobile"

Lyric says :

La donna 猫 mobile

qual piuma al vento

muta d'accento e

di pensier

Here's is Wikipedia link with translation and the music.

http://en.wikipedia.org/wiki/La_donna_%C...