Compose a musical piece by utilizing the given alphabetic form and motif.
X:1
L:1/4
M:3/4
K:D
['a f d g e', 'e c A d B ^G']  
X:1
L:1/4
M:3/4
K:D
 a f d | g e c | d f g | a f d | g e c | d3 :: e c A | d B ^G | A B d | e c A | d B ^G | A3 :|  