Craft a musical piece that integrates the provided melodic theme and the corresponding alphabetical pattern.
X:1
L:1/8
M:2/2
K:A
['', 'A2 AG', 'A2 AG']  
X:1
L:1/8
M:2/2
K:A
 AB |: cABA FAEF | A2 AG AcBA | FABc dcBA | FBBA B2 Bc | dfdB cecA | BcBA FAEA | cABA FAEF |1 
 A2 AG A2 AB :|2 A2 AG ABcd |: e2 fe ecAB | c2 f2 f3 g | agfe cAce | fagb a2 fg | abag fgfe | 
 cfec BcAB | cABA FAEF |1 A2 AG ABcd :|2 A2 AG A2 ||  