Develop tuneful melodies adhering to the specified letter notation and including the supplied thematic aspect.
X:1
L:1/8
M:4/4
K:A
['', 'Ae (3cec A2', 'dc BGEG BdcB', 'Ae (3cec']  
X:1
L:1/8
M:4/4
K:A
 (3efg |: aecf ecAd | cAGB Acea | fdAc dAF_G | ABA_G FE D2 | EGBe ceeg | bgab (3gbg (3efg | 
 afed cABc |1 Ae (3cec A2 (3efg :|2 Ae (3cec A2 ag || fdAd fagf | ecAc e2 dc | BGEG BdcB | 
 (3ABA (3Bcd e2 ag | fdAd fagf | ecAc e2 dc | BGEG BdcB |1 Ae (3cec A2 ag :|2 Ae (3cec A2 (3DCB, || 
 A,CEA FAAc | ecde (3cec AF | DFAA dfad' | ba fa d2 z2 | EGBe ceeg | bgab (3gbg (3efg | 
 afed cABc |1 Ae (3cec A2 (3DCB, :|2 Ae (3cec A4 ||  