Create a musical composition using the given alphabetical pattern and melodic theme.
X:1
L:1/8
Q:1/8=160
M:6/8
K:G
['c BAB G2', 'c BGB']  
X:1
L:1/8
Q:1/8=160
M:6/8
K:G
 c | BAB G2 F | E2 F G2 c | BAB G2 B | AFD D2 c | BAB G2 F | E2 F G2 c | BGB dcB | AFD D2 :| c | 
 BGB d2 c | BGB d2 c | BGB dcB | AFD D2 c | BGB d2 c | BGB def | gfe dcB | AFD D2 :|  