Generate a piece of music. The title is Katzenlied.  
X:1
T:Katzenlied (269), S.574
T:Katzenlied (269), S.574
C:Music21
L:1/8
M:none
I:linebreak $
K:F
V:1 treble 
V:1
 F/ | F/ c c A F | c c/ c/ A2 | B B A F | G G F2 | F2 A F | c2 z2 | c c A F | c c/ c/ A2 | %9
 B B A F | G G F2 | F2 A2 | c2 z2 | c c B E | F2 z2 || %15  