Craft a music piece according to the prescribed structure and the input theme.
X:1
L:1/8
M:4/4
K:C
['GBd{a} gf g', 'ag f'  
X:1
L:1/8
M:4/4
K:C
 BEA |[M:6/8][K:G]SOSOO .!fermata!PMTuCOMD GBd{a} gf | g a>gf g2 | g GBd gf | e d>cB A2 | 
 B GBd{a} gf | g agf ga | b a>gf gf | e dcB A2 :: c' bag ag | f gdB G2 | c' bag ad | B{d} c>Bc A2 | 
 c' bag ag | f gfe dc | B cea Bd | g{g} fef g2 :|  