Assemble a musical creation that incorporates the furnished motif and conforms to the predetermined alphabetical structure.
X:1
L:1/8
M:2/4
K:G
['G BBBB/A/ G2 DD GGB/A/G/A/ B2 z']  
X:1
L:1/8
M:2/4
K:G
 G | BBBB/A/ | G2 DD | GGB/A/G/A/ | B2 z d | gf/e/dB/G/ | e2 d z | c2 Bd | ed/c/BA | G2 z |]  