Compose a musical piece in accordance with the outlined theme and structure.
X:1
L:1/16
Q:1/8=128
M:4/4
K:D
['defe d2>A2']  
X:1
L:1/16
Q:1/8=128
M:4/4
K:D
|: A2 | defe d2>A2 d2>B2 AGFE | DFAB defd e2>d2 B2e2 | defe d2>A2 d4 A2>g2 | gfed Bgfe f2d2 d2A2 | 
 defe d2>A2 d2>B2 AGFE | DFAB defd e2>d2 B2e2 | defe d2>A2 d4 A2>g2 | gfed Bgfe f2d2 d4 | 
 A,DFD GDFD BDFD ADFA | dcdA GFED B,2E2 E2DB, | A,DFD GDFD BDFD ADFA | dfBd FAGB, A,2D2 D2DC/B,/ | 
 A,DFD GDFD BDFD ADFA | dcdA GFED B,2E2 E2FE | DAFd Afda fd'af gecA | BGdB cAge f2d2 d2 :|  