What is the significance of the pitch in music theory and how does it affect the overall composition of a musical piece?

Pitch in Music Theory refers to how high or low a sound is. It is significant because it helps create melodies and harmonies in a musical piece. The pitch of different notes determines the overall mood, emotion, and structure of the composition. By using different pitches, composers can create tension, resolution, and variety in their music, leading to a more engaging and dynamic listening experience.