Compose a musical piece based on the given motif and alphabet representation.
X:1
L:1/4
M:4/4
K:F
['z c']  
X:1
L:1/4
M:4/4
K:F
 F | F A c d | c2 A z | c B A G | F2 z F | F A c d | c2 A z | c B A G | F2 z c | c B A z | 
 c B A z | c c d d | c B A2 | c c c A | f2 z c/c/ | c A c c | F2 z |]  