Nestled in the middle of Bach's setting of the Magnificat, we can find a moment of extreme tension -- a striking diminished chord, followed by silence, and then... instead of a resolution, Bach playfully subverts our expectations and gives us an even weirder dissonance, an augmented chord.  The choir and orchestra of the Netherlands Bach Society, operating as always on a high level of musicianship, approach this moment with care -- the diminished chord, signifying the peoples' sin of arrogance, is given a few seconds to resound in the church... then, the next phrase, depicting the thoughts of the sinful heart, becomes immediately introspective and tormented.

Bach's Magnificat, performed by the Netherlands Bach Society, conducted by Jos van Veldhoven -- this link takes you to the featured "Fecit potentiam" movement:

https://youtu.be/EsUWG2axB3w?t=928

Interview video with soprano soloist Hana Blažíková:

https://www.youtube.com/watch?v=PAV8CYGZd_U&t=0s