Each composer and term belongs to a specific musical style or category. Impressionism focuses on mood and atmosphere, often linked to Debussy and Ravel. Primitivism uses strong rhythms and themes from primitive cultures, seen in Stravinsky’s works. Neo-Classicism brings back classical styles with a modern twist, as in the music of Prokofieff, Bartok, and Gershwin. Avant-Garde breaks traditional boundaries, like Philip Glass's minimalist style. Expressionism conveys intense emotion, often in atonal music, represented by Schoenberg. Timbre refers to the quality or color of sound, described using terms like breathy, smooth, husky, and rough.