Texture: how the rhythms, timbres, melodic, and harmonic materials are combined in a composition
Polyphony: two or more independent melody lines
Homophony: primary melody with accompaniment
Monophony: single melody line
Heterophonic Texture: multiple performers playing or singing a single melody all at once, each adding their own subtle variations

In your own words, write a letter to a friend who does not take music and explain the following terms to them. How would you describe them? Would you give examples or some sort of imagery?