Generate a piece of music. The title is Grserin.  
X:1
T:Gr&auml;serin (3-21), S. 73
T:Gr&auml;serin (3-21), S. 73
C:Music21
L:1/8
M:none
I:linebreak $
K:F
V:1 treble 
V:1
 F | F2 F2 | c3/2 c/ c d | c2 B A | G4- | G2 z | c | c B A G | F2 G2 | F E D2 | C4- | C2 z | C | %13
 F2 F2 | G2 c2 | A2 A/ G3/2 | G/ A3- A/ | A2 A/ G3/2 | F4- | F2 z || %20  