Backstage―Symphony in Blue by Jean-Louis Forain is an evocative scene capturing the behind-the-scenes atmosphere of a theater, with dancers and performers preparing for a show. Forain’s loose, impressionistic brushwork and his focus on the interplay of light and shadow create a sense of movement and anticipation. The painting’s blue hues dominate the composition, giving it a cool, elegant mood, typical of Forain’s depictions of Parisian nightlife.