Craft a musical piece in accordance with the designated structure and theme.
X:1
L:1/8
M:4/4
K:C
['BGAG EGDE G2 G>G', '(Bc) dBGB dBGB e2 e>d e2 de'  
X:1
L:1/8
M:4/4
K:C
 BEA |[M:2/2][K:G]SOSOO .!fermata!PMTuCO(Mdc) | BGAG EGDE | G2 G>G G3 B | AGAB cBAG | Bdde d3 d | 
 edef gage | dedB A2 (GA) | BGAG EGDE | G2 G>G G2 :: (Bc) | dBGB dBGB | e2 e>d e2 de | f2 fe defd | 
 g2 gf g2 z2 | d2 ef gage | dedB A2 (GA) | BGAG EGDE | G2 G>G G2 :|  