Compose a piece adhering to the given musical structure and theme.
X:1
L:1/8
Q:1/2=100
M:4/4
K:C
['C |[K:A] Dae Dad D f2 eAcA', 'g aeca eac aedc dbcg aefa eaca'  
X:1
L:1/8
Q:1/2=100
M:4/4
K:C
 C |[K:A] Dae Dad D f2 | eAcA eAdf | eAcA Bcdf | eAcA cdea | fdBe cA A2 :: g | aeca eac | 
 aedc dbcg | aefa eaca | fdBe cA Ag | aeca eaca | aedc dbBg | aefa daca | feBe cA A2 |]  