Contrapunctus 9: fugue, a 4, introducing main theme as counter-subject.
Around 1742 Bach made a fair copy of a then untitled work comprising 14 movements. It was not until 1747 that Bach formulated the title Die Kunst der Fuge [The Art of
Fugue].
This late 1960's performance was given by the Irish quartet, The Telemann Ensemble:
Thérèse Timoney [violin], Lindsay Armstrong [cor anglais], Máire Larchet [viola],
Aisling Drury-Byrne ['cello].