Construct a musical composition following the given alphabetical structure and incorporating the specified motif.
X:1
L:1/4
M:4/4
K:G
['c d']  
X:1
L:1/4
M:4/4
K:G
 D | G3/2 A/ B c | d3/2 e/ d d | c3/2 B/ c d | B2 z D | G3/2 A/ B c | d3/2 e/ d d | c3/2 B/ c d | 
 B2 z d | e/d/d/B/ c d | B d B G | A c A A | B e d d | e/d/d/B/ c d | B d B G | A c A F | G2 z |]  