Craft a musical work based on the specified structure and given theme.
X:1
L:1/8
Q:1/8=232
M:4/4
K:G
['FA DA', 'gd Bd'  
X:1
L:1/8
Q:1/8=232
M:4/4
K:G
|: B | G2 BG dG BG | FA DA FA DA | G2 BG dG Bd | eg fa ge dc | B2 GB dG BG | FA DA FA DA | 
 G2 BG dG Bd | eg fa g3 :: f | gd Bd gd Bd | ef gf ed cB | gd Bd gd Bd | eg fa g3 a | ga ba ef ge | 
 de dc BA Bd | ed ef gf ed | eg fa g3 :|  