BACH motif


{
\override Score.TimeSignature#'stencil = ##f
  \set Score.proportionalNotationDuration = #(ly:make-moment 2/1)
    \relative c'' {
        \time 4/1
        \set Score.tempoHideNote = ##t \tempo 1 = 60
        bes1 a c b!  
    }
}
The BACH motif
"b–a–c–h is beginning and end of all music" (Max Reger 1912)

In music, the BACH motif is the motif, a succession of notes important or characteristic to a piece, B flat, A, C, B natural. In German musical nomenclature, in which the note B natural is named H and the B flat named B, it forms Johann Sebastian Bach's family name. One of the most frequently occurring examples of a musical cryptogram, the motif has been used by countless composers, especially after the Bach Revival in the first half of the 19th century.