What artistic approach in music emphasizes innovative orchestral colors?

The correct answer focuses on Impressionism, which is an artistic movement that originated in the late 19th century and is characterized by its emphasis on capturing the fleeting effects of light and color. In music, Impressionism is marked by innovative orchestral colors and textures, often achieved through the use of unusual scales, harmonies, and instrumental timbres. Composers such as Claude Debussy and Maurice Ravel were at the forefront of this movement, creating works that evoke moods and images rather than adhering to traditional forms and structures.

Impressionist music often employs techniques like whole-tone scales and modal harmonies, allowing for a new palette of sound that is evocative and atmospheric. This contrasts with the focus on structural clarity and formal development seen in other styles like Neo-classicism, which sought to revive and adhere to classical forms and philosophies. The attention to sensory experiences in Impressionism also sets it apart from movements like Minimalism and Expressionism, which have different artistic priorities and emotional expressions.