Compose a piece of music using the provided motif and follow the designated alphabet character structure.
X:1
L:1/8
M:3/2
K:D
['(def).d .b(Tfed) .a(fed) cdef e2 B2 cdec', "(d'c'd').a bagf"]  
X:1
L:1/8
M:3/2
K:D
 (def).d .b(Tfed) .a(fed) | cdef e2 B2 cdec | (def).d b(Tgfe) .a(fed) | Adce .d(TBAG) F2 D2 :: 
 (d'c'd').a bagf efge | (=c'bc').a bagf efge | (d'c'd').a bagf gfed | Adce .d(TBAG) F2 D2 :|  