Develop tuneful melodies adhering to the specified letter notation and including the supplied thematic aspect.
X:1
L:1/8
Q:3/8=110
M:6/8
K:A
['a2 a aec f2 f e3 agf', 'EGB dcB']  
X:1
L:1/8
Q:3/8=110
M:6/8
K:A
 a2 a aec | f2 f e3 | agf edc | Bcd cBA | a2 a aec | f2 f e3 | agf edc | BAG A3 :: EGB dcB | 
 cea aec | EGB dcB | edc B2 e | a2 a aec | [fA]2 [fA] [eA]3 | agf edc | BAG A3 :|  