Create a musical composition based on the alphabetized given sequence and the provided motif.
X:1
L:1/8
M:2/4
K:C
['cBcB cdef gaga gfed cdec defd', "c2 d'bd'b c'geg fefd bc'd'b c'bc'b c'e'd'c'"]  
X:1
L:1/8
M:2/4
K:C
 cBcB | cdef | gaga | gfed | cdec | defd | Bcdc | c2 :: d'bd'b | c'geg | fefd | bc'd'b | c'bc'b | 
 c'e'd'c' | bf'd'b | c'2 z2 :|  