What role does the keyword "c" play in music theory and how does it affect the overall composition of a musical piece?

In Music Theory, the keyWord "c" represents the note C in the musical scale. It serves as a reference point for establishing the key signature and determining the relationships between different notes in a piece of music. The use of "c" influences the overall composition by providing a foundation for melody, harmony, and structure, helping to create a cohesive and coherent musical work.