Compose a piece of music using the provided motif and follow the designated alphabet character structure.
X:1
L:1/8
Q:1/8=180
M:2/2
K:D
['AD (3FED CEEG', '(3cBA eA fAeA (3fga ec']  
X:1
L:1/8
Q:1/8=180
M:2/2
K:D
 dB | AD (3FED CEEG | FDAD BcdB | AD (3FED CEEG | FGEF D2 :|[K:A] ed | (3cBA eA fAeA | 
 (3fga ec dcBA | (3cBA eA fAeA | (3fga ec d2 ed | (3cBA eA fAeA | (3fga ec dcBA | dfdB cecA | 
 Bcde fdBd"_DC" ||  