Generate a piece of music. It is monophony.  
X:1
T:Music21 Fragment
C:Music21
L:1/4
Q:1/4=92
M:2/2
I:linebreak $
K:none
V:1 treble 
V:1
"^Moderato" z G- G/ E3/2 | F3/2 d/- d B | c3/2 G/- G E | F4 | z G- G/ B3/2 | A3/2 E/- E D | C4- | %7
 C3 z | z G- G/ E3/2 | F3/2 d/- d B | c3/2 G/- G E | ^F4 | z G G A | B B B2 | z A G B | ^F4 | %16
 z G G A | B B B2 | z4 | B B A B | c4- | c3 z | z E- E/ E3/2 | E4 | z D F A | ^G3/2 G/- G2 | %26
 z E- E/ E3/2 | E4 | z D F A | c4 | z d- d/ A3/2 | c3/2 c/- c2 | z c- c/ G3/2 | _B4 | z _B B B | %35
 _B B B/c/ _B | G4- | G4 | z E- E/ E3/2 | E4 | z D F A | ^G3/2 G/- G2 | z E- E/ E3/2 | E4 | %44
 z D F _B | d4 | z c c c | d d/d/ d d | A A/A/ A2- | A4 | c2 _e d- | d F F2 | F4- | F z z2 | %54
 z E- E/ E3/2 | E4 | z D F A | ^G3/2 G/- G2 | z E- E/ E3/2 | E4 | z D F A | c4 | z d- d/ A3/2 | %63
 c3/2 c/- c2 | z c- c/ G3/2 | _B4 | z _B B B | _B B B/c/ _B | G4- | G4 | z E- E/ E3/2 | E4 | %72
 z D F A | ^G3/2 G/- G2 | z E- E/ E3/2 | E4 | z D F _B | d4 | z c c c | d d/d/ d d | A A/A/ A2- | %81
 A4 | c2 _e d- | d F F2 | F4- | F z z2 || %86  