Construct musical works adhering to the required format and the supplied musical theme.
X:1
L:1/8
M:2/4
K:G
['GB/d/ ed g2 g>f ed ef', 'g>f ed ef'  
X:1
L:1/8
M:2/4
K:G
 GB/d/ ed | g2 g>f | ed ef | ed Bd | GB/d/ ed | g2 g>f | ed ef |1 ag g2 :|2 ag ga || bc'/b/ ab/a/ | 
 g2 g>f | ed ef | ed Bd | bc'/b/ ab/a/ | g2 g>f | ed ef |1 ag ga :|2 ag g2 ||  