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
['GBdB cAFA', 'g2 d2 gdBd cBcd edef gfga bgaf'  
X:1
L:1/8
M:4/4
K:G
 D2 | GBdB cAFA | G2 (ge) dBGB | cdec BcdB | ABcA GFED | GBdB cAFA | .G(gfg) edBd | cedc BcdB | 
 cdef g2 || d2 | gdBd cBcd | edef gfga | bgaf gfed | egfa g2 (ga) | bgaf gage | dBGB dBcd | 
 egfa gedB | cdef g2 ||  