Create harmonious melodies following the given letter notation and incorporating the designated theme.
X:1
L:1/8
M:2/2
K:G
['[DBg]2 cgec']  
X:1
L:1/8
M:2/2
K:G
 d |"G" [DBg]2 dB"C" cgec |"G" BgdB"D" cAFD |"G" [DBg]2 dB"C" cgec |"G" Bd"D"Ac"G" BGG :| B | 
"G" DGBG"C" AGBG |"G" DGBG"D" AGAB |"G" DGBG"C" AGBG |"G" DE"D"DC"G" B,G,G,G |"G" DGBG"C" AGBG | 
"G" DGBG"D" AGEc |"G" BAGF"C" GFED |"D" EFGA"G" BGG |]  