Next fall, the themes of a dozen rooms will change.

"Initially, I think our themes will change, to avoid being political," she said.

In the third variation the theme has changed key to C major and is played at a more contemplative speed.

The theme (and sponsor) changed several times after it was announced.

World events have risen and fallen around John Paul, but his theme has never changed.

The themes changed with each episode, and these were the driving force for the content of the show.

This theme changed slightly in the 1990's under the influence of ethnic politics.

The main theme of research work changed and became closely related to the wartime.

In a sense, Godard's themes have changed little over the years.

As with the portfolio categories, the themes change each year.