Compose a piece using the specified musical pattern based on the alphabet and the provided melodic theme.
X:1
L:1/8
M:6/8
K:G
['d^c=c BAG', 'BBB g3']  
X:1
L:1/8
M:6/8
K:G
|: DBB BAB | d^c=c BAG | ABA DFA | d^c=c BAG | BBB DGB | d^c=c BAG | ABA DFA | G2 G3 A :| 
 BBB B^AB | BBB g3 | ecA ecA | BBB g3 | BBB B^AB | BBB g3 | ecA ABc | BGF G2 A | BBB B^AB | 
 BBB g3 | ecA ecA | BBB g3 | BBB B^AB | BBB g3 | ecA ABc | BGF G3 ||  