But her speech also rang an ominous tone that resonated well beyond the 1914 campaign.

The production was heavy and the song had an ominous tone far removed from the group's usual pop sound.

It may take the form of something as simple as a low, ominous tone suggesting an impending startling event or to enhance the depiction of a story-advancing sequence.

The instrument with its dark and ominous tones has been used in many other fantasy and science fiction movies over the years.