Alisdair Kitchen has covered two-thirds of the Goldberg Variations. Only nine to go.
Variation 21 (Canon at the Seventh)
The second minor key variation, packed with aching dissonances that would not sound out of place in the St. Matthew Passion. Note the chromatically descending bass line at the beginning – a baroque device known as the passus duriusculus – symbolic of pain and suffering.
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