What is the significance of a Roman numeral chord progression chart in understanding the structure and harmony of a piece of music?

A Roman numeral chord progression chart helps musicians understand the relationships between chords in a piece of music. By using Roman numerals to represent chords, musicians can easily see the harmonic structure and how chords relate to each other. This chart is important for analyzing and interpreting the harmony of a piece, allowing musicians to better understand how the chords work together to create the overall sound and feel of the music.