Studies have tended towards one of two main traditions.

There are two main ceremonial traditions of Iron Cross each year.

He works in black and white, the main tradition for political cartoons.

The main tradition in the Western world is usually called classical music.

Nobody any longer thinks that the main tradition came from the Yellow River.

The main traditions are the decorating of bear with birch leaves and round dance.

The main tradition has, however, been to portray the vampire in terms of a predatory sexuality.

There are two main traditions concerning the death of Glaucus.

There are two main traditions for the iconography of the face depicted on the veil.

To pick up on an earlier theme, there are two main traditions in penal reform.