This volume investigates the structural and aesthetic properties of program music, specifically focusing on how composers translate narrative or pictorial concepts into musical form. Sir Donald Francis Tovey, a renowned musicologist and composer, utilizes his extensive knowledge of the orchestral repertoire to analyze how illustrative elements function within symphonic structures. He argues that the success of illustrative music depends on the composer's ability to maintain coherent musical logic despite the external demands of a descriptive program.

Musicologists and students of composition frequently cite Tovey’s work as a foundational text for understanding the intersection of formal analysis and descriptive music. Readers often note the academic density of the prose, which requires a strong background in music theory to fully appreciate the author's nuanced arguments.