Compose a piece using the alphabetic notation of the assigned musical structure and the provided melodic motif.
X:1
L:1/8
Q:1/2=100
M:2/2
K:G
['D2 E2 G2 F2 G4']  
X:1
L:1/8
Q:1/2=100
M:2/2
K:G
"G" G2 G2"D" AGFE |"G" D6 D2 |"C" E2 G2"D7" G2 F2 |"G" G4 G4 ::"G" d3 c"Em" BcdB | 
"Am" c3 B"D7" ABcA |"G" B3 A"Em" GABG |"Am" A3 G"D7" FGAF |"Em" G3 F"C" EFGE |"D" F3 E D2 D2 | 
"C" E2 G2"D7" G2 F2 |"G" G4 G4 :|  