Craft a musical piece that abides by the prescribed structural guidelines and the given theme.
X:1
L:1/8
M:4/4
K:G
['F D2 E F2 GA BGBd cBAG', 'AB/c/ d2 df g>fd>A B2 G>G G2'  
X:1
L:1/8
M:4/4
K:G
 F |"^unedited" D2 E F2 GA | BGBd cBAG | F3 E DEFG | AFdF E3 F | DEFD GFGA | (3BAG (3Bcd (3gab | 
 A2 A>A A3 :: AB/c/ | d2 df g>fd>A | B2 G>G G2 e>f | g2 g>f e2 d2 | c2 A>A A2 A/B/c/ | 
 d>cd>c d>cd>f | e>dc>B A2 g2 | d2 cd | edef g2 g2 | dBAG GFGA | B2 G2 G2 |]  