You don’t become the greatest composer of all time overnight. Take a deep breath and plunge into Bach’s sources of inspiration. We go back to the beginnings, with Nach dir, Herr, verlanget mich. This small, fine piece is probably Bach’s very first cantata, written when our ambitious organist had just returned from Buxtehude’s town of Lübeck. A few years later, he wrote Gleich wie der Regen for the court at Weimar, a cultural hotspot of the Protestant world, with an inspiring library.