The song "take me out to the ball game" is an example of a song with a three-beat cycle called:

A group of songs connected to each other by a common idea, emotion, or story.

Explanation:

If the question was actually " A song cycle is:" for A P E X, your answer would be the one above.

i think these large heads represent their gods and i do think they were worshiped by the people. if there was only one head and no heads around it i think it would be monotheistic but if there are several heads close to each other it could be polytheistic.