Explore the intricate relationship between mathematics and music in this 38-minute Oxford Mathematics Public Lecture featuring mathematician James Sparks and the City of London Sinfonia. Delve into the mathematical genius of Johann Sebastian Bach, examining his use of counterpoint, pattern, and symmetry in compositions like the Goldberg Variations. Discover how equations, beauty in mathematics, and musical structures intertwine, drawing connections to thinkers like Bertrand Russell and Albert Einstein. Learn about the process of composing a canon and other musical maps while gaining insights into Bach's structural approach. Enjoy excerpts from the Goldberg Variations performed by the City of London Sinfonia, illustrating the mathematical principles discussed throughout the lecture.