Compose a piece adhering to the given musical structure and theme.
X:1
L:1/8
M:2/2
K:D
['(3.D.D.D FD ADFD Adde fded cAAB =c2', '(3.d.d.d (fd) adfd'  
X:1
L:1/8
M:2/2
K:D
 (3.D.D.D FD ADFD | Adde fded | cAAB =c2 cd | ea{b}ag edcd | (3.D.D.D FA defd | cAAB cdeg | 
 fdec d2 cA | BdAF EDEA || (3.d.d.d (fd) adfd | ecAB cdec | (3.d.d.d (fd) adfd | cdeg (fd) d2 | 
 (3.d.d.d (fd) adfd | cdef g2 (fg) | (3agf ge fdec | dBAG (FD) D2 |]  