Craft a musical work adhering to the specified theme and structure.
X:1
L:1/8
M:2/4
K:none
['d3 D/D/']  
X:1
L:1/8
M:2/4
K:none
[K:G] GD/G/ BG/B/ | d3 D/D/ | DB AG | GF F2 | FD/F/ AF/A/ | d3 D/D/ |"_c" cc BA | AG G2 | 
 GD/G/ BG/B/ | d3 D/D/ | DB AG | FE E2 |"_c" cB/A/ GF/E/ | DG/B/ d2 |"_c" cF/A/ dF | GB G z |]  