Using the provided alphabet sequence and motif, develop a unique musical composition.
X:1
L:1/8
M:6/8
K:D
['agf fed B2 d A2 d FAd', "a gab a2 d' f3 dcd e2"]  
X:1
L:1/8
M:6/8
K:D
 f/g/ | agf fed | B2 d A2 d | FAd dcd | fee efg | agf fed | B2 d A2 d | FAd e2 a | fdd d2 :: a | 
 gab a2 d' | f3 dcd | e2 a c2 e | dcd f2 a | gab a2 d' | f3 dcd | e2 a Ace | edd d2 :|  