Compose a music piece that includes the specified motif while adhering to the outlined alphabetical sequence.
X:1
L:1/8
M:2/2
K:A
['Ac (3efg a2{b} ag (ae)cA fdBA', 'A2 (cd) e2{g} a2 ecAc d2{d} b2']  
X:1
L:1/8
M:2/2
K:A
 (3EFG | A2{B} A>G Ac (3efg | a2{b} ag (ae)cA | fdBA GABc | dBcA GEFG | A2{B} AG Ac (3efg | 
 a2{b} ag (ae)cA | fdBA GABd | c2 A2 A2 :: (cd) | e2{g} a2 ecAc | d2{d} b2 BcdB | gbeg begb | 
 ac'ea c'eac' | e'2 c'2 a2 e2 | fdBf ecAc | B2{cBAB} (gf) edBG | Aaec A2 :|  