It was the first to use the subject as its primary theme.

The primary theme became a popular tune in its time.

Peace was a primary theme in this pivotal popular music event.

Either way, a connection can be drawn back to the initial primary theme.

There is another possible source for this same primary theme.

However, Williams did write two new primary themes for this score.

The primary theme for the series is friendship and "growing older."

Its primary theme seems to be the ephemeral nature of news.

The show's primary theme is more personal than political, however.

Social privilege and the lack of it is a primary theme.