In By the Piano, the viewer is greeted by a warm and inviting interior. The painting features a woman seated gracefully beside a grand piano, her attire reflecting the fashion of the late 19th century. Soft, muted colors dominate the scene, with rich browns and warm golds creating a cozy atmosphere.

The background includes hints of decorative elements, suggesting a well-appointed room filled with culture and music. The painting is executed in oil on canvas, showcasing Delphin Enjolras' skillful brushwork. The details of the woman's dress and the piano are rendered with precision, highlighting the textures of fabric and polished wood. The composition is balanced, drawing the eye towards the central figure while allowing the background to complement the subject.

Light plays a crucial role, illuminating the scene and enhancing the overall warmth. Delphin Enjolras was known for his depictions of elegant interiors and fashionable women, often reflecting the lifestyle of the bourgeoisie in late 19th-century France. By the Piano exemplifies his focus on domestic scenes that celebrate music and leisure. An interesting fact about this work is that it captures not just a moment of solitude but also the cultural significance of music in social gatherings of the time.

Enjolras' ability to blend realism with a touch of romanticism makes this piece a notable example of his oeuvre.