Develop a piece of music conforming to the stated structure and theme.
X:1
L:1/8
M:2/2
K:D
['D2 (DE)', 'fgag fd=cA AG'  
X:1
L:1/8
M:2/2
K:D
|: D2 (DE) FEFD | GFGA BGA[Fc] |1 D2 (DE) FEFG | AdcA GECE :|2 d2 (dg) fdce | fd=cA AG G2 |]: 
 fdcd fgaf | gfga bgag |1 fdcd fgag | fd=cA G2 G2 :|2 bgag fgag | fd=cA AG G2 |]  