English edit

Etymology edit

These four notes spell Bach's name; in German musical nomenclature “B” stands for B flat, whereas “H” means B natural.

Noun edit

 
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BACH motif (plural BACH motifs)

  1. (music) A sequence of four notes (B flat, A, C, B natural), included in a piece of music as a homage to Johann Sebastian Bach.
    The BACH motif: