Create harmonious melodies following the given letter notation and incorporating the designated theme.
X:1
L:1/8
M:4/4
K:C
['GFED FAAc dABG FAAF GBdB', 'gfge afdf']  
X:1
L:1/8
M:4/4
K:C
 BEA |[M:4/4][K:D]SOSOO .!fermata!PMTuCOMFAAF GFED | FAAc dABG | FAAF GBdB | Adfe dcBA | 
 FAAF GFED | FAAc dABG | FAAF GBdB | AFDF E2 D2 || afdf gfge | afdf (eB) B2 | afdf gfge | 
 afdf e2 d2 | afdf gfge | afdf (eB) B2 | defg afbf | afdf e2 d2 |]  