This series of five recitals covered different facets of Johann Sebastian Bach’s vast organ legacy. The first and second concerts focused on the chorales, the archetypal genre of the Reformed liturgy that Bach used with exceptional mastery. The third and fourth concerts consisted of the trio sonatas by the kantor of St Thomas. Composed around 1727, possibly for his son Wilhelm Friedemann, they are works in which Bach partially leaves aside counterpoint in order to move ahead towards classicism, with clear melodies and simpler textures. The opposite direction was taken by the preludes and fugues, very idiomatic works in which Bach displays his extensive technical knowledge, and which featured in the last of the concerts.