Generate a piece of music. The title is Duan chro osa.  
X:1
T:Duan chro osa, S. 504
T:Duan chro osa, S. 504
C:Music21
L:1/4
M:none
I:linebreak $
K:G
V:1 treble 
V:1
 G/ A/ | B d c | B2 A | G A G | F2 E | E3- | E z | E/ F/ | G F E | G2 A | B2 c | d B G | A3- | %13
 A z | A | G F E | G2 A | B2 c | d B G | A3- | A z | G/ A/ | B d c | B2 A | G A G | F2 E | E3- | %27
 E z || %28  