Compose a piece of music that follows the specified structure and incorporates the given theme.
X:1
L:1/4
Q:1/4=100
M:4/4
K:D
['A G F D D', 'A G F D D'  
X:1
L:1/4
Q:1/4=100
M:4/4
K:D
"^(Editorial suggestion)" A | G F D D | =c d c A | G F D D | D3 D | F G B A | d e f e | d d c d | 
 A3 D | F G B A | d e f e | d d c A | d3 A | G F D D |"^(a)" =c d c A | G F D D | D3 || A | 
 G F D D | =c d c A | G F D D | D3 D | F G B A | d e f e | d d c d | A3 D | F G B A | d e f e | 
 d d c A | d3 A | G F D D |"^(a) var." B/=c/ d c A | G F D D | D3 |]  