Construct a music composition that complies with the designated structure and theme.
X:1
L:1/8
M:2/4
K:D
['AB/A/ FA de f2 fe/f/ gc', 'ef/e/ ce fe'  
X:1
L:1/8
M:2/4
K:D
 AB/A/ FA | de f2 | fe/f/ gc | ed BA | AB/A/ FA | de f2 | fe/f/ gc | ed d2 :: ef/e/ ce | fe a2 | 
 ef/e/ ce | fe c/B/A | ef/e/ ce | fe a2 | ef/e/ cB | A2 A2 :|  