Compose a musical piece using the specified sequence's alphabetical representation and the provided motif.
X:1
L:1/8
M:2/2
K:Amix
['f e2 Ac/d/ ecAa e2 AB/c/ dBGf', 'cA cd/e/']  
X:1
L:1/8
M:2/2
K:Amix
 f | e2 Ac/d/ ecAa | e2 AB/c/ dBGf | eAcd eAcA | BE E/E/E dBG :: B | cA cd/e/ cAAB | 
 cA cd/e/ dBGB | cA cd/e/ cAcA BE E/E/E dBG :|  