Compose a musical piece in accordance with the outlined theme and structure.
X:1
L:1/8
Q:1/2=90
M:4/4
K:F
['cefa gedc defd dcBA BcdB', 'afcA cfaf gecA FAcf'  
X:1
L:1/8
Q:1/2=90
M:4/4
K:F
 cefa gedc | defd dcBA | BcdB ABcA | dcBA A2 G2 | cefa gedc | defd dcBA | BcdB cagf | gece f2 F2 :: 
 afcA cfaf | gecA FAcf | defd cefc | cBAG A2 G2 | afcA cfaf | gecA FAcf | fbca BgAf | cBAG A2 F2 :|  