Produce a music piece that aligns with the mentioned musical structure and theme.
X:1
L:1/8
M:2/4
K:D
['[DD]4 [DD]4', '[EA,][EC] [DD]2'  
X:1
L:1/8
M:2/4
K:D
"D" [DD]4 | [DD]4 | [DD]4 | [DD]4 |]"D" [FD][AF] [AF][AF] | [FD][AF] [AF][AF] | 
 [FD][FD]"A7" [EA,][EC] |"D" [DD]2 [DD]2 |:"D" [DD]2"A7" [EC]2 |"D" [FD][AF] [AF] z | 
"D" [FD][FD]"A7" [EA,][EC] |"D" [DD]2 [DD]2 :|  