What are all the modes in music and how are they used in composition and performance?

In music, modes are different scales that create unique sounds and moods. The main modes are Ionian, Dorian, Phrygian, Lydian, Mixolydian, Aeolian, and Locrian. Composers and performers use modes to create different tonalities and emotions in their music. Each mode has its own characteristic sound and can be used to add variety and color to compositions.