Much in the same way, impressionism in music aims to create descriptive impressions, not necessarily to draw clear pictures. The music is not designed to explicitly describe anything, but rather to create a mood or atmosphere. This is done through almost every aspect of music: melody, harmony, color, rhythm, and form. Melodies tend to be short in nature, often repeated in different contexts to give different moods. In terms of color, notes are often drawn from scale systems other than the traditional major and minor. These include pentatonic, whole-tone, or other exotic scales (for example, Debussy, a major figure of impressionism, was influenced by Asian music).
The use (or misuse, as some critics might say) of harmony was a major part of impressionism. Impressionists did not use chords in the traditional way. For nearly the entire history of Western music, chords had been used to build and relieve tension, thus giving the music a sense of direction.
Now to provide an example of impressionism, we have "L'îsle Joyeuse" ("The Island of Joy") by Claude Debussy. This is actually a musical interpretation of the painting "The Embarkation for Cythera" by Jean-Antoine Watteau. Both the painting and the piece tell the story of a journey to the mythical island of Cythera, an ideal place of love and beauty. The opening trills suggest the excited anticipation of the travelers; a middle section depicts them floating over the water; their arrival is heralded by jubilant trumpeting; and their ecstatic joy in realizing their destination provides a climactic finish. The chords in this piece