Develop a musical composition in line with the given structure and theme.
X:1
L:1/8
Q:1/8=130
M:6/8
K:G
['dBG dBG efg', 'Bdd fbb'  
X:1
L:1/8
Q:1/8=130
M:6/8
K:G
 dBG dBG | efg efg | dBG dBG | efg g3 | dBG ecG | fcA gdB | efg fed | cBA G2 z :| Bdd fbb | 
 bff dBB | Bdd fbb | bag f3 | gBd gbg | ece c'eg | dBG ecG | fcA g3 :|  