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
['AFEC E2']  
X:1
L:1/8
M:4/4
K:A
 cB | AFEC E2 Ec/B/ | AFEC E2 E2 | A>Bc>B AGFE | FBBc B2 Bc/B/ | AFEC E2 Ec/c/ | ccBA B2 Bc/d/ | 
 ee c/B/A ee c/B/A | Ec B/c/B A2 :|  