Generate a piece of music. The title is Da kommen die vier schwarzen Brder.  
X:1
T:Da kommen die vier schwarzen Br&uuml;der (Band 1), S. 57
T:Da kommen die vier schwarzen Br&uuml;der (Band 1), S. 57
C:Music21
L:1/8
M:none
I:linebreak $
K:G
V:1 treble 
V:1
 D D G | G3/2 G/ G/ G G G G/ | G B d | G | G G A2 | A c B A | G2 z | G | F G A2 | A2 A c | %10
 B3/2 A G/ | B | B3/2 B/ B A | G B d B | A2 z | G | A3 G/ G/ | A2 G A | B2 A A | G2 z | B | %21
 B3/2 B/ B A | G B d B | A2 z | G | A3 G/ G/ | A2 G A | B2 A A | G || %29  