Create harmonious melodies following the given letter notation and incorporating the designated theme.
X:1
L:1/8
M:4/4
K:G
['BAGF GDDE =FDCE DG,G,A, B,A,B,C', 'DGGF GABG =FGAB cBcd edef gdBG AcBA', 'g2 dg bgdg f2 df afdf e2', 'G2 DGG=F DCA,C DE=FG AB c2 DGGF']  
X:1
L:1/8
M:4/4
K:G
 BAGF GDDE | =FDCE DG,G,A, | B,A,B,C DCDE | =FEDE FGAc | BAGF GDDE | =FDCE DG,G,A, | 
 B,A,B,C DE=FE | DdcA BGGA :| DGGF GABG | =FGAB cBcd | edef gdBG | AcBA GE E2 | DGGF GABG | 
 =FGAB cBcd | edef gdBG | AcBA BG G2 :| g2 dg bgdg | f2 df afdf | e2 ce dcBA | GFGB AF D2 | 
 g2 dg bgdg | f2 df afdf | e2 ce dcBA | BdcA BG G2 :| DGG=F DCA,C | DE=FG AB c2 | DGGF GABc | 
 dBAc BG G2 :|  