The article examines inherent relations of the German, British and American branches of Bachology. For the first time the author summarizes the findings of the English-speaking (British and American) Bach scholars from the beginning of the XX century till nowadays. The paper describes different aspects of polemics on the problems of authorship, chronology, symbolism and pitch in the composer’s works. The study contains information on the American Bach Society, scientific periodicals (“Bach Perspectives”, “Bach: Journal of the Riemenschneider Bach Institute”, “Bach Notes” bulletin) and modern reference literature on Bachology.