What is the significance of the dominant chord in a musical composition, and how does it relate to the concept of harmonic progression in music theory?

The dominant chord in music is important because it creates tension and leads to resolution in a composition. It is often used to build momentum and create a sense of direction in the music. In terms of harmonic progression, the dominant chord typically resolves to the tonic chord, creating a sense of closure and stability. This relationship between the dominant and tonic chords is a fundamental aspect of Music Theory and helps to create a sense of structure and coherence in a piece of music.