Develop a musical creation based on the specified alphabetical structure and given motif.
X:1
L:1/4
M:4/4
K:G
['d e']  
X:1
L:1/4
M:4/4
K:G
 G/B/ | d e d c | B2 A A | B B ^c c | d2 z d | g g f f | e2 d d | e d/c/ B A | G2 z |]  