A Schenkerian graph is a visual representation used in music theory to illustrate the underlying structure of a musical piece. Developed by music theorist Heinrich Schenker, these graphs help analyze the relationships between different musical elements, such as melody, harmony, and rhythm. They reveal how complex compositions can be understood through simpler, more fundamental layers. In a Schenkerian graph, the music is often depicted in a hierarchical manner, showing the connections between surface details and deeper structural components. This method allows musicians and scholars to explore the intricacies of a piece, enhancing their understanding of its overall form and development.