Compose a musical piece in accordance with the outlined theme and structure.
X:1
L:1/16
Q:1/8=180
M:2/4
K:D
['F2d2 d2cd ecAc d2de', 'A2A2A2 fg agfe dcBA B2G2 G2ga bagf'  
X:1
L:1/16
Q:1/8=180
M:2/4
K:D
 AG | F2d2 d2cd | ecAc d2de | fdfd gfge | afdf ecAG | F2d2 d2cd | ecAc d2de | fdgf edcB | A2A2A2 :: 
 fg | agfe dcBA | B2G2 G2ga | bagf gfed | c2A2 A2fg | afaf bge2 | gfge afd2 | agbg fedc | d2d2d2 :|  