Develop a musical composition utilizing the presented motif and adhering to the required structure.
X:1
L:1/8
M:3/4
K:D
['Ad dA', 'd/f/a/g/ ec ec A/c/e/g/ fd fd'  
X:1
L:1/8
M:3/4
K:D
|: Ad dA F/D/F/A/ | Ad dA FA | dd/f/ ee/g/ fd | AA GG FD | Ad dA F/D/F/A/ | Ad dA FA | 
 dd/f/ ee/g/ fd | A/B/A/G/ G2 F2 :: d/f/a/g/ ec ec | A/c/e/g/ fd fd | d/f/a/g/ ec ec | 
 A/c/e/g/ fd fd | d/B/A/F/ FE EC | A,/C/E/G/ F2 D2 :|  