Construct a melodic piece using the alphabet-based musical sequence and the given motif.
X:1
L:1/8
M:2/2
K:A
['AB cAcB Acea fecB', 'fe fgaf ed c2 c B2 GB']  
X:1
L:1/8
M:2/2
K:A
 (3(EFG | A2) AB cAcB | Acea fecB | A2 AB cBAc | BGEG BdcB | A2 AB cAcB | Acea fecB | E2 GB dBGB | 
 EAAB A2 :: e2 | f2 fe fgaf | ed c2 !slide![ee]3 c | B2 GB dBGB | AcAc B2 A2 | f2{g} fe fgaf | 
 ed c2 !slide![ee]3 c | B2 GB cABA | EAAB A2 :|  