Create harmonious melodies following the given letter notation and incorporating the designated theme.
X:1
L:1/8
M:2/2
K:A
['A2 AcBA', 'GABc defg']  
X:1
L:1/8
M:2/2
K:A
 (3efg | a2 A2 AcBA | E2 A2 AcBA |1 F2 B2 BcBA | GABc defg :|2 GABc defg | aece A2 |: (3BAG | 
 A2 a2 A3 B | B2 b2 B3 A |1 GABc defg | aefd cABG :|2 GABc defg | a2({b} ag) a2 ||  