Compose a musical piece using the specified sequence's alphabetical representation and the provided motif.
X:1
L:1/8
M:2/2
K:D
['f/g/a fd', 'D2 f/g/a bg e/f/g af d/e/f gf']  
X:1
L:1/8
M:2/2
K:D
 f/g/a fd f/g/a fd | gecA gecA | GAGg FGFf | edAc d2 D2 :: f/g/a bg e/f/g af | d/e/f gf ecAG | 
 FAdf Aceg | fdAc d2 D2 :|  