Craft a musical piece that integrates the provided melodic theme and the corresponding alphabetical pattern.
X:1
L:1/8
M:6/8
K:A
['BAc Ffe cAA eAA', 'aec dBG']  
X:1
L:1/8
M:6/8
K:A
|: EAA ABc | BAc Ffe | cAA eAA | e6 | fga gec | fdB ecA | dBG FGA | B3 B2 c | BEE EFA | BAc Ffe | 
 cAA eAA | f3 efa | fBB Bce | cAE FGA | feA GFG |1 A3 A2 A :|2 A3 efg |: agf efa | fdB ecA | 
 cea dfa | egb b3 | d'be c'ae | bge aec | afe dBe | f3 ef=g | fed Bd=g | Ade fga | eag aec | 
 dBG EFG | ABc FGA | Bcd efg | aec dBG |1 A3 efg :|2 A6 ||  