Develop musical compositions in line with the specified format and incorporating the provided musical theme.
X:1
L:1/8
M:6/8
K:G
['B3 BAG dBd deg dBd gdB', 'g3 gab'  
X:1
L:1/8
M:6/8
K:G
 B3 BAG | dBd deg | dBd gdB | A3 DFA | B3 BAG | dBd deg | dBd gdB | A3 G3 :| g3 gab | e3 edB | 
 g3 gab | bag a3 | g3 gab | e3 efg | d2 d edB | A3 G3 :|  