Create a composition following the given musical structure and theme.
X:1
L:1/8
Q:1/2=90
M:2/2
K:D
['dcdc dfaf']  
X:1
L:1/8
Q:1/2=90
M:2/2
K:D
|:"^$" (3(ABc) | dcdc dfaf | dcdc dfaf | dfba gfed |1 cdBc ABcA :|2"^$" cdec d2 |:  