Craft a music piece according to the prescribed structure and the input theme.
X:1
L:1/4
M:4/4
K:F
['e f', 'F E'  
X:1
L:1/4
M:4/4
K:F
 d e f d | g e f d |1 d d d d | c B A G :|2 c d/c/ B A/G/ | G A/F/ G z |: g a/g/ f e | f e d2 |1 
 G A/G/ F E | F E D2 :|2 G A/G/ F E | F E D2 |]  