This collection investigates the structural and aesthetic principles underlying the symphonic and orchestral repertoire of the 18th and 19th centuries. Sir Donald Francis Tovey, a distinguished musicologist and composer, utilizes his deep technical knowledge of harmonic progression and formal development to provide detailed commentary on major works. The text serves as a bridge between academic musicology and the practical listening experience of the concert-going public.

Musicologists and conductors frequently cite these essays as a foundational resource for understanding the internal logic of the classical symphonic canon. Readers often note the high level of technical density in the prose, which assumes a working knowledge of musical notation and theory.