Assemble a musical creation that incorporates the furnished motif and conforms to the predetermined alphabetical structure.
X:1
L:1/8
Q:1/4=100
M:4/4
K:G
['d BGGG AGGG dddg edcB cAAA BAAA', 'd c Bdgg gage fgab agfe de/f/']  
X:1
L:1/8
Q:1/4=100
M:4/4
K:G
"_Allegro" d | BGGG AGGG | dddg edcB | cAAA BAAA | cAAA e2 d :: c | Bdgg gage | fgab agfe | 
 de/f/ gg g>age | fdef g2 g :|  