What is the significance of the octave norm in music theory and how does it impact the composition and performance of musical pieces?

The octave norm in Music Theory is significant because it establishes a standard for pitch relationships in music. It impacts composition and performance by providing a framework for creating harmonies, melodies, and chord progressions that are pleasing to the ear. This norm helps musicians understand and navigate the structure of music, allowing for creativity and expression within a defined range of pitches.