Produce pleasing melodies that correspond with the indicated letter notation and incorporate the suggested theme.
X:1
L:1/8
M:4/4
K:G
['G2 BG', 'd3 e dBgB', 'g2 bg']  
X:1
L:1/8
M:4/4
K:G
 G2 BG | AGBG | G2 BG | GE E2 | G2 BG | AGBG | dedc | BG G2 :| d3 e | dBgB | dedB | cA A2 | d3 e | 
 dBgB | dedc | BG G2 :| g2 bg | agbg | g2 bg | ge e2 |1 g2 bg | agbg | dedc | BG G2 :|2 bgaf | 
 gefd | efga | bg g2 :|  