Compose a piece adhering to the given musical structure and theme.
X:1
L:1/8
Q:1/8=180
M:4/4
K:G
['B2 Ac BGdG DEGA BG G2 Bdef', 'gfeB d2 ed BGBd g2 ga'  
X:1
L:1/8
Q:1/8=180
M:4/4
K:G
 e | dged B2 Ac | BGdG DEGA | BG G2 Bdef | g2 ga gfed | d2 ed B2 Ac | BGdG DEGA | BG G2 Bdef |1 
 gbaf g3 :|2 gbaf g2 || ef | g2 ga gfeB | d2 ed BGBd | g2 ga gfeB | dega bggf | gbaf gfeB | 
 d2 ed BGBd | g2 ga gfed |1 ceaf g2 :|2 ceaf g4 |]  