somebody's mood changes

We had our chance at several more, but soon the mood changed.

To see how quickly the cultural mood has changed, go back just six years.

The mood has very much changed from just a few days ago.

Instead, as they began working in the summer of 2001, their mood and focus changed.

Yet the mood changed quickly enough when the play began.

After one of those calls her whole mood would change.

He saw at once that the mood of the meeting had changed.

But the mood has changed in the last year, he added.

Yet, by the start of the 20th century, the mood had changed.

Brown's whole mood changed and for some time he did not say anything.