Compose melodious music utilizing the prescribed letter representation and integrating the given thematic element.
X:1
L:1/16
Q:1/4=100
M:2/4
K:Ddor
['G2G2 D2D2 G2G2 D4 F4 GAGA', 'D4 F2FE D2D2 F2FG E4 FGFG E2F2', 'D4 G2G2 D2D2 G2G2 D4 F4 GAGA']  
X:1
L:1/16
Q:1/4=100
M:2/4
K:Ddor
 G2G2 D2D2 | G2G2 D4 | F4 GAGA | FGEF D4 :| F2FE D2D2 | F2FG E4 | FGFG E2F2 | E2D2 D4 :| 
 G2G2 D2D2 | G2G2 D4 | F4 GAGA | FGEF D4 :|  