Assemble a musical creation that incorporates the furnished motif and conforms to the predetermined alphabetical structure.
X:1
L:1/8
M:3/4
K:G
['A2 GB c3 G cB']  
X:1
L:1/8
M:3/4
K:G
 GA c2 e2 | d3 Ace | dB c2 G2 | cB G2 A2 | GB c3 G | cB d2 A2 | GB c3 G | cB G2 A2 |]  