Create harmonious melodies following the given letter notation and incorporating the designated theme.
X:1
L:1/8
M:4/4
K:G
['D |:O', 'cB)AF GABG FDDE GAB(G cA)Bc d2 AG', 'cdec defd cAAB']  
X:1
L:1/8
M:4/4
K:G
 D |:O GAB(G cB)AF | GABG FDDE | GAB(G cA)Bc | d2 AG FDDE :| (de)fd cdec | defd cAAB | 
 def(d cd)ec | dABG FD D2 | (de)fd cdec | defd cAAB | defd cdef | aef(d c)BAF ||  