What are the modes in music theory and how do they influence the composition and interpretation of music?

Modes in Music Theory are different scales that have unique patterns of whole and half steps. They influence composition and interpretation by providing different tonalities and moods for musicians to work with. Each mode has its own characteristic sound, which can evoke specific emotions and create different atmospheres in music. Understanding and using modes can add depth and complexity to compositions, allowing musicians to explore a wider range of musical possibilities.