The surprise is the campaign's appealing, low-key tone, which at first sounds almost modest.

They're regular kids-one loves to garden, one dances, one does yoga-and Poehler talks to them in a low-key, engaging tone of voice.

Other events had a much more intimate or low-key tone, with many people opting to celebrate near their homes, with relatives and friends.

The Heat chose a low-key, serious tone today.

The low-key tone of Chinese objections has been especially true of the response to the sanctions.

But it was in keeping with the low-key tone of the journey, and it came as advertised.

For one, China, in the wake of the Cnooc defeat, has adopted a low-key tone.

The Phys.com campaign takes a low-key, wry tone.

The enthusiastic manner in which the characters express themselves through song contrasts with the otherwise low-key tone of the show.

The film's low-key tone is not that of a family drama but of an eloquent remembrance.