In Old Sound, Paul Klee uses a vibrant palette of colors, including deep blues, bright yellows, and rich reds. The composition features abstract shapes that seem to dance across the canvas. There are no distinct figures, but rather a play of forms that evoke a sense of rhythm.

The overall effect is lively and engaging, drawing the viewer into its dynamic world. The painting is characterized by its use of bold colors and geometric shapes, typical of Klee's style. The brushwork is expressive, with visible strokes that add texture to the surface. The layering of colors creates depth, inviting viewers to explore the interplay between the shapes.

This work exemplifies Klee's interest in the relationship between sound and visual art. Paul Klee was a Swiss painter known for his unique approach to color and form. He often sought to express emotions and ideas through abstraction. Old Sound reflects his fascination with music and its connection to visual art.

An interesting fact about this work is that it was created during a period when Klee was exploring the concept of synesthesia, where one sense is perceived through another.