Develop musical pieces that conform to the specified format and include the suggested musical theme.
X:1
L:1/8
M:4/4
K:G
['G2 BG cABG', 'g2 dg egdg'  
X:1
L:1/8
M:4/4
K:G
 G2 BG cABG | ADDE FGAF | G2 BG cABG | Addc BG G2 :: g2 dg egdg | g2 bg fgaf | g2 dg egdg | 
 cBAd BG G2 :|  