What is the significance of the negative harmony chart in music theory and how can it be applied in composition and arrangement?

The negative harmony chart in Music Theory is significant because it offers a different perspective on chord progressions and tonal relationships. It involves mirroring chords and melodies around a central axis to create new harmonic possibilities. This technique can be applied in composition and arrangement to add depth and complexity to music, creating unexpected and unique sounds that can enhance the overall musical experience.