Craft a musical piece that abides by the prescribed structural guidelines and the given theme.
X:1
L:1/8
M:2/4
K:G
['dB AB B/A/G/A/'  
X:1
L:1/8
M:2/4
K:G
 (G/E/) |"G" DG BA/G/ |"Am" AE E>G |"G" DG BA/G/ |"Bm" dB B>d |"C" eg"G" dB |"Am" c/B/A/G/"D7" AB | 
"G" DG"D7" B/A/G/A/ |"G" BGG :: (B/c/) |"G" dB gB |"Am" c/B/A/G/"D7" AB/c/ |"G" dB gd | 
"C" eg"G" g>d |"C" eg"G" dB |"Am" c/B/A/G/"D7" AB |"G" DG"D7" B/A/G/A/ |"G" BGG :|  