Create harmonious melodies following the given letter notation and incorporating the designated theme.
X:1
L:1/8
M:6/8
K:F
['C/B/ |:O A2', 'c2 A{B} AGA', 'ABc d2']  
X:1
L:1/8
M:6/8
K:F
 C/B/ |:O A2 A{B} AGA | c2 A{B} AGA | B2 d f2 d | c2 A{B} AGA |{c} B2 G{A} GFG | A2 F{G} FEF | 
 D2 d dcB | A2 F F2!fine! :: !fermata!c | c2 B ABc | d2 e f2 g | a2 g fed | c2 A ABc | d2 d dBG | 
 c2 c cAF |{c} B2 G{B} A2 F | G2 E CcB!D.C.! :|  