Create a musical composition that adheres to the provided structure and theme.
X:1
L:1/4
M:none
K:D
['A (3A G =F E2 z/']  
X:1
L:1/4
M:none
K:D
 A/ | A =c B d | d B A2 z/ A/ | d =c c A | (3A G =F E2 z/ D/ | =F G/ A A/ _B G/ A | 
 (3A G =F E2 z/ E/ | =F/F/ D E G | (3G =F E D2 |]  