Johann Sebastian Bach – Sonata no. 3 in D minor BWV 527 Havinga | Netherlands Bach SocietyThe opening of this sonata in D minor, performed by Matthias Havinga for All of Bach, has an uncertain and emphatically andante sound. To the ears of seventeenth and eighteenth-century musicologists the key of D minor represented melancholy, devotion, solemnity and seriousness. Following this tentative start, Bach launches into experimentation, by juggling motifs almost wildly and searching for new keys.