Craft a musical piece in accordance with the designated structure and theme.
X:1
L:1/8
M:6/8
K:D
['Adf Adf fed e2 c Ace', 'Adf a2 ^g a2 =g e2 c'  
X:1
L:1/8
M:6/8
K:D
 Adf Adf | fed e2 c | Ace Ace | gfe f2 d | Adf Adf | fed e2 c | Ace gfe | ABc d3 :: Adf a2 ^g | 
 a2 =g e2 c | Ace g2 f | g2 a f2 d | Adf a2 ^g | a2 =g e2 c | Ace gfe | ABc d3 :|  