Construct a music composition that complies with the designated structure and theme.
X:1
L:1/8
M:2/4
K:G
['Bc/e/ dA dB G2', 'ge/g/ fd eB d2 GB/e/'  
X:1
L:1/8
M:2/4
K:G
 Bc/e/ dA | dB G2 | AB cA | Bc/d/ G2 | Bc/e/ dA | dB G2 | dB Ad | G2 G2 :| ge/g/ fd | eB d2 | 
 GB/e/ dB | gB d2 | ge/g/ fd | eB d2 | GB/e/ d F | G2 G2 :|  