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" A A/>F/ G G/>F/ | A A/>F/ G A | F2 F2- | F3 z | e e/>c/ d d/>c/ | e e/>c/ d c | A4- | %7
 A3 z | A A/>F/ G G/>F/ | A A/>F/ G A | F2 F2- | F3 z | =B B/>G/ A A | A4 | =B B/>G/ A A | A4 | %16
 =B3/2 A/ c3/2 B/ | d3/2 c/ e/>c/A/>E/ | G2 G2 | G4 | z d c F | _B A z _B | A C A G- | G3 z | %24
 z d c F | _B A z _B | A C G ^F- | F4 | z D E =F | A/ F G/- G2 | A/ F G/- G/F/ G | A2 ^G2 | %32
 z E ^F A | C/ A =B/- B2 | c/ A =B/- B/A/ B | ^c2 =c2 | z d c F | _B A z _B | A C A G- | G3 z | %40
 z d c F | _B A ^C G | ^F4- | F3 z | z D E =F | A/ F G/- G2 | _B/ G A/- A/_B/ c | d4 | z d c F | %49
 _B A C G | F4- | F z z2 | z d c F | _B A z _B | A C A G- | G3 z | z d c F | _B A z _B | %58
 A C G ^F- | F4 | z D E =F | A/ F G/- G2 | A/ F G/- G/F/ G | A2 ^G2 | z E ^F A | C/ A =B/- B2 | %66
 c/ A =B/- B/A/ B | ^c2 =c2 | z d c F | _B A z _B | A C A G- | G3 z | z d c F | _B A ^C G | ^F4- | %75
 F3 z | z D E =F | A/ F G/- G2 | _B/ G A/- A/_B/ c | d4 | z d c F | _B A C G | F4- | F2- F z || %84  