Generate a piece of music.  
X:1
T:Music21 Fragment
C:Music21
L:1/8
M:4/4
I:linebreak $
K:C
V:1 treble 
V:1
 C | E2 D E F A G E | D C C C C3 C | E G G G A G c G | A G G A !fermata!G3 C | E G G G A G c G | %6
 A G c G/E/ G2 !fermata!E C | F E F G A G E C |{/E} D C C C C3 z | %9  