* The artist's work explored the entire gamut of human emotion, from joy to despair. (This emphasizes the range of something.)
* The musical performance covered a wide gamut of styles, from classical to jazz to rock. (This highlights variety.)
* The company's products run the gamut from simple tools to complex machinery. (This shows the range of products offered.)
* Her facial expressions ran the gamut from confusion to anger to delight. (This describes a series of emotions.)
* The debate touched on the entire gamut of political issues. (This signifies the comprehensiveness of the discussion.)
Remember, "gamut" refers to the entire range or scope of something.