Construct a musical composition following the given alphabetical structure and incorporating the specified motif.
X:1
L:1/8
M:6/4
K:C
['d2 e2', 'f3 g e2']  
X:1
L:1/8
M:6/4
K:C
 g2 | e3 f g2 c2 d2 e2 | B6 G2 c2 B2 | c3 d e2 d2 e2 f2 | e6- e4 :: fg | a3 g a2 d2 e2 f2 | g6 c6 | 
 f3 g e2 d2 (fedc) | B6 G4 c2 | f3 g e2 d3 c B2 | c6- c4 :|  