Develop a musical composition by incorporating the given alphabetic framework and motif.
X:1
L:1/8
M:2/4
K:G
['GGAA B2']  
X:1
L:1/8
M:2/4
K:G
 GGAA | B2 GD | GGAA | B2 GG | BBAG | B2 BB | AAAB | G2 GB | A2 GB | A2 G z | dGGG | GF G2 |]  